The present perfect tense is used to express actions that began in the past and have relevance to the present. It is formed using the auxiliary verbs have or has plus the past participle of the main verb. Examples are given of affirmative, negative, and interrogative sentences using the present perfect. The tense can be used to refer to unspecified times in the past, actions with present results, general life experiences, recently occurred events, events that have happened up until now, and actions that began in the past and continue.
Simple Past Tense vs Simple Perfect tenseRyanZilly
Simple past tense and simple perfect tense definition, the formula of simple past tense and simple perfect tense, the example of simple past tense and simple perfect tense, the characteristics of simple past tense and simple perfect tense and the different of simple past tense and simple perfect tense.
This lessons gives you an overview of the present perfect tense in English Grammar.
More free lessons can be found on the website of Language Open Learning - http://www.LanguageOpenLearning.com
Simple Past Tense vs Simple Perfect tenseRyanZilly
Simple past tense and simple perfect tense definition, the formula of simple past tense and simple perfect tense, the example of simple past tense and simple perfect tense, the characteristics of simple past tense and simple perfect tense and the different of simple past tense and simple perfect tense.
This lessons gives you an overview of the present perfect tense in English Grammar.
More free lessons can be found on the website of Language Open Learning - http://www.LanguageOpenLearning.com
Form: S+ have V(p.p.) + Comp. hasI have drunk four cups of coffee today.She has lost her keys at the park.
Negation: S+ have NOT V(p.p.)+ Comp. hasI haven’t seen Tom this morning. Have you?Ron hasn’t worked really hard this term.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
2. The present perfect is a grammatical
combination of the present
tense and the perfect aspect, used to
express a past event that has present
consequences.
3. FORM of the PRESENT PERFECT TENSE
The Present Perfect Tense is formed by 2 things:
- the auxiliary verb HAVE and HAS
(in all form: Affirmative, Negative and Interrogative)
-the PAST PARTICIPLE
EXAMPLE :
He has already arrived in Catalonia.
auxiliary past participle
5. The Present Perfect Tense is formed using the
following structure:
Affirmative: Subject + Have / Has + Past
Participle
Negative: Subject + Haven't / Hasn't + Past
Participle
Question: Have / Has + Subject + Past Participle
6. Affirmative Sentences
Subject Have
Past
Participle
Rest of the
Sentence
I have studied for the exam.
You have bought a new computer.
He has eaten my chocolate.
She has written an e-mail.
It has been cold this month.
We have won the championship.
You have tried to learn a lot.
They have forgotten my birthday.
7. Contractions
The contracted form of the perfect tense is quite
common:
Have Contraction Examples
I have I've I've spent all my money.
You have You've
You've worn that dress
before.
He has He's He's slept all morning.
She has She's She's lost her purse.
It has It's It's fallen off the wall.
We have We've
We've chosen you for the
job.
You have You've You've begun to annoy me.
They have They've They've drunk too much.
We use contractions a lot when we are speaking
8. Negative Sentences
The contraction of the perfect tense in negative form is:
Have not = Haven't
Has not = Hasn't
subject Have
Past
Participle
Rest of the
Sentence
I haven't studied for the exam.
You haven't bought a new computer.
He hasn't eaten my chocolate.
She hasn't written an e-mail.
It hasn't been cold this month.
We haven't won the championship.
You haven't tried to learn a lot.
They haven't forgotten my birthday.
9. Questions
Have Subject
Past
Participle
Rest of the
Sentence
Have I been
chosen for the
team?
Have you bought a new car?
Has he eaten my sandwich?
Has she written the letter?
Has it started on time?
Have we won a trophy?
Have you kept my secret?
Have they driven there?
10. When do we use the Present Perfect Tense?
1. Unspecified point in the past
• I have been to Spain three times.
(At some unspecified time in the past, I went to Spain).
Compare with the simple past:
• I went to Spain three times in 2005.
(specified time in the past - the year 2005)
2. An action that occurred in the past, but has a result in the present (now)
• We can't find our luggage. Have you seen it?
(The luggage was lost in the past, do you know where it is now?)
3. Talking about general experiences (ever, never)
• It usually refers to an event happening at some moment in your life.
• Has she ever tried Chilean wine before? (in her life)
• I've never eaten monkey brains before. (in my life)
11. 4. Events that recently occurred (just)
• Do you want to go to a restaurant with me?
No, thanks. I've just eaten lunch. (I recently ate lunch.)
5. Events that have occurred up to now (yet)
• Are Carlos and Rodrigo here? No, they haven't arrived yet. (they're still
not here now)
6. Events that occurred before you expected (already)
• I've already graduated from University. (I expected to graduate at a later
date.
7. Events that began in the past and haven't changed (for, since)
• Mike has worked at Woodward for 3 years.
(Mike started working at Woodward 3 years ago and he still works there
now.)
• Julie has worked at Woodward since September last year.
(Julie began working at Woodward in September of last year, and that
hasn't changed - she still works here now.)
