This document provides instruction on using the present perfect tense in English. It explains that the present perfect tense is formed using have/has + past participle and is used to describe actions that began in the past and continue to the present or have recent relevance. Examples are given of using the present perfect with time expressions like "since," "for," "already," "yet," and "ever." Practice exercises are included to reinforce using the present perfect tense correctly.
Las ideas contenidas en este documento son el resultado de una construcción colaborativa realizada por los autores de este documento, miembros de la Red de Investigación Educativa – ieRed, en el marco del trabajo de grado Modelo tecnológico para la apropiación de Software Libre en sedes educativas públicas del Departamento del Cauca de Alejandra María Narvaez Camayo, entre febrero y junio de 2016
Going Cloud, Going Mobile: Will Your Network Drag You Down?Wes Morgan
A detailed discussion of the network impliications of migrating users/services to cloud and mobile devices. Common pitfalls and problems are discussed with 'real world' examples.
Årsredovisningsseminarium - Årsredovisning och employer brandingComprend
Hur kan innehållet i årsredovisningen bli en riktig talangmagnet? Sara Hernandez och Tommie Cau på Comprend pratade om detta på Hallvarsson & Halvarssons Årsredovisningsseminarium 26 maj 2016
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
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.
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.
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.
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.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
3. We form the present perfect tense
with have / has + past participle.
Present perfect tense
I
You
We
They
have eaten an apple.
He
She
It
John
has eaten an apple.
4. Present Past Present perfect
do
be
write
eat
draw
break
speak
Irregular verbs
Present perfect tense
did have / has done
wrote have / has written
ate have / has eaten
drew have / has drawn
broke have / has broken
spoke have / has spoken
was/were have / has been
5. Present Past Present perfect
take
ride
drink
swim
throw
see
go
Irregular verbs
Present perfect tense
took have / has taken
rode have / has ridden
drank have / has drunk
swam have / has swum
threw have / has thrown
saw have / has seen
went have / has gone
6. Present Past Present perfect
sweep
make
get
Irregular verbs
Present perfect tense
swept have / has swept
made have / has made
got have / has got
7. Present Past Present perfect
paint
move
tidy
Regular verbs
Present perfect tense
painted have / has painted
moved have / has moved
tidied have / has tidied
8. e.g. (a) Ben is eating a chicken leg.
(b) Ben has eaten a chicken leg.
Example (1)
We use the Present Perfect tense to
show the result of an action.
9. I have done my homework yesterday.
I did my homework yesterday.
Example (2)
We cannot use the Present Perfect tense
with adverbs of time,
e.g. yesterday, two weeks ago.
10. Practice (1)
Present Past Present perfect
e.g. make
4 draw
7 write
made have / has made
drew have / has drawn
wrote have / has written
1 do
2 tidy
3 eat
5 take
6 paint
did have / has done
tidied have / has tidied
ate have / has eaten
took have / has taken
painted have / has painted
11. Present Past Present perfect
12 see
15 break
rode have / has ridden
saw have / has seen
broke have / has broken
9 swim
10 sweep
11 move
13 speak
14 cook
swam have / has swum
swept have / has swept
moved have / has moved
spoke have / has spoken
cooked have / has cooked
8 ride
Practice (2)
12. Already / yet
Have you eaten the apples yet? (question)
‘Yet’ goes at the END of the sentence or question.
No, I haven’t eaten the apples yet. (negative)
In the Present Perfect tense, we use
yet with questions or negative (no)
sentences.
13. Already / yet
Have you eaten the apples yet? (question)
Yes, I’ve already eaten the apples. (positive)
‘Already’ goes in the MIDDLE or at the END of the sentence.
or Yes, I’ve eaten the apples already. (positive)
In the Present Perfect tense, we use
already with positive (yes) sentences.
14. once / twice
How many times have you given flowers to the
pop star ? (question)
I’ve given flowers to a pop star once only.
‘once’ goes at the END of the sentence.
or I’ve given flowers to a pop star only once.
In the Present Perfect tense, we use once
/twice to express frequency.
15. ever / never
Have you ever celebrated the Cheung Chau Bun
Festival ? (question)
No,I’ve never celebrated the Cheung Chau Bun
Festival. (answer)
In the Present Perfect tense, we use ever
(question) and never (answer) to express
frequency.
16. ______ Mary _______ her homework _____?
Yes, she __________her homework _______ .
Has done yet
has done already
Already / yet
e.g. do
Yes, she _________________her homework.has already done
or
17. ______ Ben _______ his hamburger_____ ?
No, he ___________________ his hamburger
_______ .
Has eaten yet
hasn’t / has not eaten
Already / yet
e.g. eat
yet
18. 2 (sweep)
________ Sally and Joe ________ the
floor _______ ?
No, they____________ the floor
_____ .
1 (do)
________ Mum ________ the washing
_______ ?
Yes, she _______________ the washing.
Has done
yet
has already done
Have swept
yet
haven’t swept
yet
Practice
19. 4 (write)
________ Mark ________ the letter
_______ ?
No, he ____________ the letter _____ .
3 (throw)
________ you ________ away the rubbish
_______ ?
Yes, I ______________ away the rubbish
_______ .
Have thrown
yet
’ve / have thrown
Has written
yet
hasn’t written yet
already
Practice
20. 6 (watch)
_______ you ______ _______ birds in Mai Po
Wetlands ?
No, I ____________ ________ birds in Mai
Po Wetlands.
5 (visit)
How ____________ have you ________ Hong
Kong Disneyland ?
I ______________ there _________.
Have watched
have never watched
Practice
many times visited
have visited twice
ever
22. We use the present perfect tense to talk
about actions that started in the past and
continue to the present.
Present perfect tense
e.g. I’ve grown flowers for two years.
2003-nowNow is 2005.
23. We use the present perfect tense with
since and for to say how long an action
has lasted.
Present perfect tense
I have played the piano since 2010.
I have played the piano for four years.
24. Since
We use since with the present perfect
tense to refer to the starting point of
an action.
I have studied at this school since 2000.
(2000 is a point of time, not a period of time.)
Now
2005
starting time
2000
Present perfect tense
25. For
We use for with the present perfect tense
to refer to a period of time.
I have studied in ¡Supérate! for one year and
a half.
( ‘one year and a half’ is a period of time, not a point of time.)
Now
2015
starting
time
since 2014
period of time (for one
year and a half)
Present perfect tense
26. Practice (1)
Use since or for.
1 I have had piano lessons _____ ten years.
2 Peter has collected stamps _____ 2003.
3 Amy has grown flowers _____ last month.
4 My brother has played football _____ two
years.
5 John and Jenny have been friends _____
eight months.
6 They have done ballet _____ 2000.
7 My father has driven his car _____ 1996.
for
for
for
since
since
since
since
27. How long …?
How long
have done ballet?
collected stickers?
learnt the piano?has
you
he
she
done ballet
collected stickers
learnt the piano
since
for
2001.
one year.
I
He
She
have
has
28. How long have these children done their
hobbies?
paint pictures, 2003
A: How long have you painted pictures?
B: I have painted pictures since 2003.
29. grow flowers, six months
A: How long have you grown flowers?
B: I have grown flowers for six months.
31. play the violin, five years
A: How long have you played the violin?
B: I have played the violin for five years.
32. Kate
do karate, last month
A: How long ___________________ ?
B: She _____________________________ .
has Kate done karate
has done karate since last month
33. James
collect coins, two years
A: How long _____________________ ?
B: He _______________________________ .
has James collected coins
has collected coins for two years
34. Shirley
collect seashells, last summer
A: How long ____________________________?
B: She ________________________________ .
has Shirley collected seashells
has collected seashells since last summer
35. actions that
happened in
the past
actions that started
in the past and
continue to the present
actions that have just
finished
e.g. I sang yesterday. e.g. I’ve sung for two
hours.
e.g. I’ve just sung a
famous song.
Past tense & Present perfect tense
Past Tense Present Perfect Tense
36. Past Tense Present Perfect Tense
We know the
specific point of
time of the
action.
e.g. I drew a picture
last night.
We do not know the
time of the action.
e.g. I’ve drawn a picture
already.
Past tense & Present perfect tense
37. verb - 1 word
e.g. I started playing
the violin in 2000.
verb - 2 words
e.g. I’ve played the violin
since 2000.
Past Tense Present Perfect Tense
Hint words:
yesterday,
last night,
last Sunday,
last year, ago,
in 2000
Hint words:
since, for, already, just,
yet, ever
Past tense & Present perfect tense
38. Practice (2)
e.g. I _______ a dress two weeks ago. (make)made
1 I ______________ in Hong Kong since 1990.
(live)
2 My parents _______ our house in 2000. (buy)
3 Miss Lee ___________ at my school
for two years. (teach)
4 Tom _______ his uncle one month ago. (visit)
5 Polly and Dolly __________ friends
since last year. (be)
6 The baby __________ for four hours. (sleep)
have lived
bought
has taught
visited
have been
has slept
39. Hi boys and girls,
Please read Chapter 1,2 (Book
5B) & Chapter 2 (Book 6A) :
1.Practise the usage of present
perfect tense.