The document discusses various tenses in English including the past progressive, present progressive, future progressive, past perfect progressive, present perfect progressive, and future perfect progressive tenses. Examples are provided for each tense to illustrate their structures and usage. The key features of each tense such as its form, usage, and example sentences are outlined.
This document provides information about and examples of using the present perfect tense in English. It covers:
- The formula for forming the present perfect tense
- Examples of affirmative, interrogative, and negative sentences
- Commonly used contractions in the present perfect tense
- Uses of the present perfect tense including recent events, personal experiences, actions that started in the past and continue to the present
- Time expressions used with the present perfect tense such as already, ever, never, yet, since, for, just
- Questions to check understanding of when to use the simple past versus present perfect tense
The document provides information about forming and using the present perfect tense in English. It explains the structure of the present perfect tense using auxiliary verbs like "have" and "has" followed by the past participle form of the main verb. Examples are given for regular and irregular verbs. The uses of the present perfect tense include talking about experiences, actions that began in the past and continue to the present, and actions that have results in the present. Time expressions like "for" and "since" are also discussed.
The Past perfect and Past Perfect continuousSafaâ Khoungui
The document provides instruction on using the past perfect and past perfect continuous tenses in English. It defines the past perfect as an action that occurred before another past action, and the past perfect continuous as a continuing past action that ended at a certain point in the past. Examples and exercises are included to illustrate forming sentences in these tenses and when to use each one. Key points covered include using adverbs like "already" or "for" with the past perfect, and how the past perfect continuous focuses on duration while the past perfect is a single action.
This document explains the present perfect continuous tense in English grammar. It describes the structure as subject + have/has been + main verb + -ing. Examples are given such as "I have been waiting for one hour." There are two main uses - an action that recently stopped with a present result, and an action continuing up to now, often using "for" or "since". Contractions are common in speaking, such as "I've been." Practice sentences are provided to form the tense positively or negatively.
Lecture4 6 19541-perfect and conti tensesBasit Ashaie
The document discusses various tenses in English including the present perfect, present perfect continuous, past perfect, future perfect, and future perfect continuous. It provides examples and explanations of when to use each tense. The present perfect is used for past actions that have present relevance. The present perfect continuous emphasizes the duration of an action up to the present. The past perfect places an action before another past action. The future perfect and future perfect continuous are used to talk about actions that will be completed or ongoing at some point in the future.
The document describes the present perfect tense in English. It provides the formula of have/has + past participle and examples of affirmative, interrogative, and negative forms. It explains that the present perfect tense is used to describe recent events without a definite time, express personal experiences without a definite time, and describe actions that began in the past and continue to the present. It notes that the time periods for these ongoing actions can be defined using "for" to indicate a duration or "since" to indicate a starting point in the past.
This document discusses various verb tenses in English including the present continuous, past continuous, present perfect, and past perfect tenses. It provides the structure, use, examples, and exercises for each tense. The present continuous is used to show ongoing actions happening now. The past continuous describes unfinished past actions. The present perfect indicates actions that began in the past and continue to the present or are completed recently. The past perfect refers to actions completed before some point in the past. Exercises reinforce using each tense correctly in sentences.
This document provides information about and examples of using the present perfect tense in English. It covers:
- The formula for forming the present perfect tense
- Examples of affirmative, interrogative, and negative sentences
- Commonly used contractions in the present perfect tense
- Uses of the present perfect tense including recent events, personal experiences, actions that started in the past and continue to the present
- Time expressions used with the present perfect tense such as already, ever, never, yet, since, for, just
- Questions to check understanding of when to use the simple past versus present perfect tense
The document provides information about forming and using the present perfect tense in English. It explains the structure of the present perfect tense using auxiliary verbs like "have" and "has" followed by the past participle form of the main verb. Examples are given for regular and irregular verbs. The uses of the present perfect tense include talking about experiences, actions that began in the past and continue to the present, and actions that have results in the present. Time expressions like "for" and "since" are also discussed.
The Past perfect and Past Perfect continuousSafaâ Khoungui
The document provides instruction on using the past perfect and past perfect continuous tenses in English. It defines the past perfect as an action that occurred before another past action, and the past perfect continuous as a continuing past action that ended at a certain point in the past. Examples and exercises are included to illustrate forming sentences in these tenses and when to use each one. Key points covered include using adverbs like "already" or "for" with the past perfect, and how the past perfect continuous focuses on duration while the past perfect is a single action.
This document explains the present perfect continuous tense in English grammar. It describes the structure as subject + have/has been + main verb + -ing. Examples are given such as "I have been waiting for one hour." There are two main uses - an action that recently stopped with a present result, and an action continuing up to now, often using "for" or "since". Contractions are common in speaking, such as "I've been." Practice sentences are provided to form the tense positively or negatively.
Lecture4 6 19541-perfect and conti tensesBasit Ashaie
The document discusses various tenses in English including the present perfect, present perfect continuous, past perfect, future perfect, and future perfect continuous. It provides examples and explanations of when to use each tense. The present perfect is used for past actions that have present relevance. The present perfect continuous emphasizes the duration of an action up to the present. The past perfect places an action before another past action. The future perfect and future perfect continuous are used to talk about actions that will be completed or ongoing at some point in the future.
The document describes the present perfect tense in English. It provides the formula of have/has + past participle and examples of affirmative, interrogative, and negative forms. It explains that the present perfect tense is used to describe recent events without a definite time, express personal experiences without a definite time, and describe actions that began in the past and continue to the present. It notes that the time periods for these ongoing actions can be defined using "for" to indicate a duration or "since" to indicate a starting point in the past.
This document discusses various verb tenses in English including the present continuous, past continuous, present perfect, and past perfect tenses. It provides the structure, use, examples, and exercises for each tense. The present continuous is used to show ongoing actions happening now. The past continuous describes unfinished past actions. The present perfect indicates actions that began in the past and continue to the present or are completed recently. The past perfect refers to actions completed before some point in the past. Exercises reinforce using each tense correctly in sentences.
The document provides a review of various tenses in English including the present simple, present continuous, past simple, past continuous, present perfect simple, and present perfect continuous. It defines each tense and provides examples of their common uses such as for habits, ongoing actions, completed past actions, experiences, and durations of time. The review is intended for students taking an English course and focuses on proper usage of verb forms and structures across different tenses.
This document provides information on English verb tenses, including present, past, and future tenses. It discusses the simple, continuous, perfect, and perfect continuous forms of each tense. For each tense form, it provides the basic meaning or usage and examples to illustrate when that tense would be used. The tenses covered are the present simple, present continuous, present perfect, present perfect continuous, past simple, past continuous, past perfect, past perfect continuous, future simple, future continuous, future perfect, and future perfect continuous.
The document discusses the present perfect tense in English. It defines the present perfect as an action that began in the past and continues into the present. It provides examples of the structure and uses of the present perfect tense, including describing experiences over an unspecified period of time, repeated actions, and recently completed actions. The document also discusses the use of helping verbs like "has" and "have", the use of "for" and "since" with the present perfect, and words like "already" and "yet" that are used with the present perfect tense.
1. The document provides information on the structure of written expression, including parts of speech like nouns, verbs, adjectives, adverbs, and their functions.
2. It discusses noun phrases and clauses, verb tenses and forms, pronouns, modifiers, gerunds, relatives, conjunctions, and modals.
3. The last part covers passive voice transformations. The document serves as a reference for basic grammar terms and their usage in sentences.
This document discusses different ways to talk about the future in English. It explains the uses and forms of the future tense "will", the future tense "be going to", and the present continuous tense used for future meaning. Examples are provided to illustrate how to use each tense affirmatively, negatively, and interrogatively. Additional tenses that can express future actions are also mentioned, including the present simple, future continuous, and future perfect tenses.
The document reviews tenses in English, including the present simple and present continuous tenses. It provides examples of how to form sentences in the affirmative, negative, and interrogative forms in these tenses. It also includes activities for students to practice forming sentences using these tenses correctly.
The document discusses English verb tenses including present, past, and future tenses. It provides examples and explanations of how to use 12 different verb tenses: present simple, present continuous, present perfect, present perfect continuous, past simple, past continuous, past perfect, past perfect continuous, future simple, future continuous, future perfect, and future perfect continuous. For each tense, it outlines the forms, provides examples, and explains when to use each tense.
The document discusses the present perfect tense in English. It explains that the present perfect is formed using the present tense of have/has plus the past participle of the main verb. It can be used to describe actions that began in the past and continue in the present, actions that occurred within a period not yet finished, repeated actions over an unspecified time period, and recent completed actions. The document also discusses using the present perfect with words like ever, never, already, yet, for, and since.
The document provides information on various tenses in English including:
- Main tenses are simple, continuous, perfect, and perfect continuous in past, present, and future.
- Simple present tense is used for habits, general truths, future meaning with timetables.
- Present continuous emphasizes ongoing or temporary actions.
- Present perfect is used for unfinished or recent past actions with present results.
- Simple past tense expresses completed actions, narratives, and habitual past actions.
- Past continuous emphasizes parallel or interrupted past actions.
- Past perfect expresses actions completed before other past actions.
5. Tenses I. Easy format to understand pptxZunairaYasin2
The document contains practice questions in English grammar related to tenses, logical reasoning, and conditionals. There are multiple choice questions testing understanding of topics like present indefinite tense, present perfect continuous tense, passive voice construction, and the zero, first, second, and third conditional forms. The questions cover usage and examples of various grammatical structures in both affirmative and negative forms.
The document discusses various tenses in English including their uses and forms. It describes the simple present, past, and future tenses and their uses for habitual actions, completed past actions, and future events. It also covers the present perfect, present continuous, past perfect, and other tenses along with examples of their uses and forms.
The document discusses the use of the conjunctions "either...or", "neither...nor", and "both...and". It explains that "either...or" is used to offer a choice between two options, while "neither...nor" denies that two or more options are true. "Both...and" refers to two or more things being true together. Some examples are provided to illustrate the grammatical rules for these conjunctions when used with singular and plural nouns. The document concludes with practice problems asking the reader to fill in the appropriate conjunction based on the context.
The document describes the past perfect continuous, present perfect continuous, and future perfect continuous tenses. It provides examples of how each tense is used to indicate duration before or cause of something in the past, present, or future. For each tense, it explains the tense's structure and common uses to denote duration up until a certain time or cause and effect relationships between actions.
This document discusses various English tenses:
1. Simple Present tense - used to describe habitual or repeated actions, facts, or situations that are currently true.
2. Simple Past tense - used to describe completed actions or events that happened at a specific time in the past.
3. Present Continuous tense - used to describe actions or events that are happening now or ongoing over a period of time.
4. Future tense - used to describe actions or events that have not yet occurred but will occur or are expected to occur in the future.
This document discusses English verb tenses including:
- Simple present, present continuous, present perfect, present perfect continuous
- Past simple, past continuous, past perfect, past perfect continuous
- Future simple, future continuous, future perfect, future perfect continuous
For each tense, it provides the meaning, form, and examples to illustrate how and when to use each tense. Exercises with fill-in-the-blank questions are also included to help practice each tense.
This PPT contains the brief and comprehensive presentation on the most important element of English Language / Grammar i.e. Tenses and their Aspects. This video talks about the Present, Past and Future Tense and their Aspects or Sub-tenses with examples.
The document discusses the differences between the past simple and past continuous tenses in English. The past simple is used to talk about completed past events, while the past continuous describes a situation that was ongoing in the past. Examples are provided of how to form the past simple and past continuous using regular and irregular verbs. Time expressions that are commonly used with each tense are also listed. The document concludes with examples of using the correct tense and practice identifying whether sentences should use the past simple or past continuous.
The chapter Lifelines of National Economy in Class 10 Geography focuses on the various modes of transportation and communication that play a vital role in the economic development of a country. These lifelines are crucial for the movement of goods, services, and people, thereby connecting different regions and promoting economic activities.
The document provides a review of various tenses in English including the present simple, present continuous, past simple, past continuous, present perfect simple, and present perfect continuous. It defines each tense and provides examples of their common uses such as for habits, ongoing actions, completed past actions, experiences, and durations of time. The review is intended for students taking an English course and focuses on proper usage of verb forms and structures across different tenses.
This document provides information on English verb tenses, including present, past, and future tenses. It discusses the simple, continuous, perfect, and perfect continuous forms of each tense. For each tense form, it provides the basic meaning or usage and examples to illustrate when that tense would be used. The tenses covered are the present simple, present continuous, present perfect, present perfect continuous, past simple, past continuous, past perfect, past perfect continuous, future simple, future continuous, future perfect, and future perfect continuous.
The document discusses the present perfect tense in English. It defines the present perfect as an action that began in the past and continues into the present. It provides examples of the structure and uses of the present perfect tense, including describing experiences over an unspecified period of time, repeated actions, and recently completed actions. The document also discusses the use of helping verbs like "has" and "have", the use of "for" and "since" with the present perfect, and words like "already" and "yet" that are used with the present perfect tense.
1. The document provides information on the structure of written expression, including parts of speech like nouns, verbs, adjectives, adverbs, and their functions.
2. It discusses noun phrases and clauses, verb tenses and forms, pronouns, modifiers, gerunds, relatives, conjunctions, and modals.
3. The last part covers passive voice transformations. The document serves as a reference for basic grammar terms and their usage in sentences.
This document discusses different ways to talk about the future in English. It explains the uses and forms of the future tense "will", the future tense "be going to", and the present continuous tense used for future meaning. Examples are provided to illustrate how to use each tense affirmatively, negatively, and interrogatively. Additional tenses that can express future actions are also mentioned, including the present simple, future continuous, and future perfect tenses.
The document reviews tenses in English, including the present simple and present continuous tenses. It provides examples of how to form sentences in the affirmative, negative, and interrogative forms in these tenses. It also includes activities for students to practice forming sentences using these tenses correctly.
The document discusses English verb tenses including present, past, and future tenses. It provides examples and explanations of how to use 12 different verb tenses: present simple, present continuous, present perfect, present perfect continuous, past simple, past continuous, past perfect, past perfect continuous, future simple, future continuous, future perfect, and future perfect continuous. For each tense, it outlines the forms, provides examples, and explains when to use each tense.
The document discusses the present perfect tense in English. It explains that the present perfect is formed using the present tense of have/has plus the past participle of the main verb. It can be used to describe actions that began in the past and continue in the present, actions that occurred within a period not yet finished, repeated actions over an unspecified time period, and recent completed actions. The document also discusses using the present perfect with words like ever, never, already, yet, for, and since.
The document provides information on various tenses in English including:
- Main tenses are simple, continuous, perfect, and perfect continuous in past, present, and future.
- Simple present tense is used for habits, general truths, future meaning with timetables.
- Present continuous emphasizes ongoing or temporary actions.
- Present perfect is used for unfinished or recent past actions with present results.
- Simple past tense expresses completed actions, narratives, and habitual past actions.
- Past continuous emphasizes parallel or interrupted past actions.
- Past perfect expresses actions completed before other past actions.
5. Tenses I. Easy format to understand pptxZunairaYasin2
The document contains practice questions in English grammar related to tenses, logical reasoning, and conditionals. There are multiple choice questions testing understanding of topics like present indefinite tense, present perfect continuous tense, passive voice construction, and the zero, first, second, and third conditional forms. The questions cover usage and examples of various grammatical structures in both affirmative and negative forms.
The document discusses various tenses in English including their uses and forms. It describes the simple present, past, and future tenses and their uses for habitual actions, completed past actions, and future events. It also covers the present perfect, present continuous, past perfect, and other tenses along with examples of their uses and forms.
The document discusses the use of the conjunctions "either...or", "neither...nor", and "both...and". It explains that "either...or" is used to offer a choice between two options, while "neither...nor" denies that two or more options are true. "Both...and" refers to two or more things being true together. Some examples are provided to illustrate the grammatical rules for these conjunctions when used with singular and plural nouns. The document concludes with practice problems asking the reader to fill in the appropriate conjunction based on the context.
The document describes the past perfect continuous, present perfect continuous, and future perfect continuous tenses. It provides examples of how each tense is used to indicate duration before or cause of something in the past, present, or future. For each tense, it explains the tense's structure and common uses to denote duration up until a certain time or cause and effect relationships between actions.
This document discusses various English tenses:
1. Simple Present tense - used to describe habitual or repeated actions, facts, or situations that are currently true.
2. Simple Past tense - used to describe completed actions or events that happened at a specific time in the past.
3. Present Continuous tense - used to describe actions or events that are happening now or ongoing over a period of time.
4. Future tense - used to describe actions or events that have not yet occurred but will occur or are expected to occur in the future.
This document discusses English verb tenses including:
- Simple present, present continuous, present perfect, present perfect continuous
- Past simple, past continuous, past perfect, past perfect continuous
- Future simple, future continuous, future perfect, future perfect continuous
For each tense, it provides the meaning, form, and examples to illustrate how and when to use each tense. Exercises with fill-in-the-blank questions are also included to help practice each tense.
This PPT contains the brief and comprehensive presentation on the most important element of English Language / Grammar i.e. Tenses and their Aspects. This video talks about the Present, Past and Future Tense and their Aspects or Sub-tenses with examples.
The document discusses the differences between the past simple and past continuous tenses in English. The past simple is used to talk about completed past events, while the past continuous describes a situation that was ongoing in the past. Examples are provided of how to form the past simple and past continuous using regular and irregular verbs. Time expressions that are commonly used with each tense are also listed. The document concludes with examples of using the correct tense and practice identifying whether sentences should use the past simple or past continuous.
The chapter Lifelines of National Economy in Class 10 Geography focuses on the various modes of transportation and communication that play a vital role in the economic development of a country. These lifelines are crucial for the movement of goods, services, and people, thereby connecting different regions and promoting economic activities.
Andreas Schleicher presents PISA 2022 Volume III - Creative Thinking - 18 Jun...EduSkills OECD
Andreas Schleicher, Director of Education and Skills at the OECD presents at the launch of PISA 2022 Volume III - Creative Minds, Creative Schools on 18 June 2024.
A Visual Guide to 1 Samuel | A Tale of Two HeartsSteve Thomason
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
How Barcodes Can Be Leveraged Within Odoo 17Celine George
In this presentation, we will explore how barcodes can be leveraged within Odoo 17 to streamline our manufacturing processes. We will cover the configuration steps, how to utilize barcodes in different manufacturing scenarios, and the overall benefits of implementing this technology.
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
2. Past Progressive Tense
• Negatives – was not/ were not + verb-ING
• Yes/No Questions - Was/Were (Wasn’t/Weren’t) +
Subject + verb-ING
• Wh-Questions - Wh-word + was/were
(wasn’t/weren’t) + Subject + verb-ING
• Tag Questions - positive sentence in the past
progressive + was/were (wasn’t/weren’t) + pronoun
3. Negatives in the Past Progressive (Continuous)
• Examples:
1. I wasn’t sleeping when you came home last
night.
2. When Ms. Foster came in, the girls weren’t
studying.
3. Sam wasn’t lying when he said he loved you.
4. Yes/No Questions in the Past Progressive
(Continuous)
• Examples:
1. Was I talking to you?
2. Were you writing the report when the electricity went
off?
3. When you came home, was he singing in the shower?
4. Wasn’t Tom sitting in the cafe when you drove past?
5. Wh-Questions in the Past Progressive
(Continuous)
• Examples:
1. Where were you standing when the trouble
started?
2. Who was I talking to? I can’t remember.
3. Why wasn’t she waiting at the meeting point?
6. Tag Questions in the Past Progressive
(Continuous)
• Examples:
1. I was snoring last night, wasn’t I?
2. They were all rushing for the exit, weren’t they?
3. When Mr. Thomas called, David was solving crossword puzzles,
wasn’t he?
4. Jennifer wasn’t trying very hard, ________?
5. The trains weren’t running on schedule yesterday, ________?
7. Present Progressive Tense Structure
• Positive form (+) - Subject + BE ( am / is / are ) + Verb-ING
• Negative form (-) - Subject + BE ( am / is / are ) + NOT +
Verb-ING
• Questions (+/-) - BE ( am / is / are ) /(not)+ Subject + Verb-
ING
• Short answer form (+/–) - YES / NO + Subject + BE / BE
NOT
8. Present Progressive Tense Structure
POSITIVE (+) NEGATIVE (-) QUESTION (?)
I am starting I am not (I’m not)
starting
Am I starting…?
You are starting You are not (aren’t)
starting
Are you starting…?
He/She/It is starting He/She/It is not
(isn’t) starting
Is he/she/it
starting…?
9. Positive Sentences ( Sbj + BE + Ving )
• Examples:
1. She is listening to music now.
2. We are learning English at this moment.
3. My mother is cooking dinner in the kitchen now.
4. Look! A car is coming.
10. Negative Sentences ( Sbj + BE NOT + Ving )
• Examples:
1. She is not (isn’t) listening to music now.
2. We are not (aren’t) learning English at this moment.
3. My mother is not (isn’t) cooking dinner in the kitchen
now.
4. That car is not (isn’t) coming here.
11. Question Sentences ( BE + Sbj + Ving )
• Examples:
1. Is she listening to music now?
2. Are they learning English at this moment?
3. Is your mother cooking dinner in the kitchen now?
4. Is that car coming here?
12. Future Progressive Tense
• The man is excited because he will be seeing his long-
distance girlfriend over the holiday weekend.
• The woman said that she will be running for mayor last
year, but that she was uncertain about how much good
she could really do.
13. Future Progressive Tense
• The man is excited because he will be seeing his long-
distance girlfriend over the holiday weekend.
• The woman said that she will be running for mayor last
year, but that she was uncertain about how much good
she could really do.
14. Future Progressive Tense
• The Moscow State Circus will be performing in Cheltenham for
the next 3 weeks.
• We will be celebrating like kings if it works.
• The next time you see a spider's web, please pause and look a little
closer. You will be seeing one of the most high-performance
materials known to man. (Biologist Cheryl Hayashi)
• She'll be coming around the mountain when she comes.
16. Past Perfect Progressive Tense
• She had been painting the door before the dog scratched it.
• The jury had been considering its verdict for several hours
when the judge effectively ordered them to find Jones guilty.
• He just couldn't summon the energy. He had been working
at the dock all afternoon.
17. Present Perfect Progressive Tense
• It is used for:
1. A continuous activity that began in the past and
continues into the present. For example:
Ex. Those workmen have been fixing the roads.
18. Present Perfect Progressive Tense
• It is used for:
2. continuous activity that began in past but has now
finished (usually very recently).
Ex. John has been baking cakes.
19. Present Perfect Progressive Tense
• Julie has been relying on a pay rise to pay her student
loan.
• Mr and Mrs Cox have been taking the wrong pills for
years.
20. Future Perfect Progressive Tense
• The future perfect progressive tense is typically used with two
time expressions: one specifying a time in the future and one
stating the length of the activity. For example:
1. By six o'clock, John will have been baking a cake for an
hour.
2. They will have been painting the fence for two days by
Saturday.
21. Future Perfect Progressive Tense
• In July next year, you will have been studying for eight
months.
• I will have been playing poker for 30 years by then.
• By the time the boat arrives, they will have been living
without proper food for two weeks.
22. Future Perfect Progressive Tense
• In July next year, you will have been studying for eight
months.
• I will have been playing poker for 30 years by then.
• By the time the boat arrives, they will have been living
without proper food for two weeks.
Editor's Notes
Note: In general, use these contractions in the negative: wasn’t, weren’t. Save the long forms for when you want to create emphasis.
Wh- questions are questions that require more information in their answers. Typical wh- words are what, where, when, which, why, who, and how.
As a rule: When the sentence is positive, the tag is negative.When the sentence is negative, the tag is positive.
Which one is correct here?
Which one is correct here?
Now, construct these sentences in a negative version, yes/no question, and wh-question.
Now, construct these sentences in a negative version, yes/no question, and wh-question.
Now, construct these sentences in a negative version, yes/no question, and wh-question.
Now, construct these sentences in a negative version, yes/no question, and wh-question.
(Julie might still be relying on a pay rise, or she might have received the pay rise. You can't tell from this sentence. However, this information is just setting the scene for some more information about Julie's present situation.)
(The Coxes might still be taking the wrong pills or not. You can't tell from this sentence. However, this information is just setting the scene for some more information about the Coxes' present situation.)
("By six o'clock" specifies a time in the future. "For an hour" tells us the length of the activity.)
("By six o'clock" specifies a time in the future. "For an hour" tells us the length of the activity.)