The document explains the usage of perfect tenses in English, including examples and structures for affirmative, negative, and interrogative sentences. It emphasizes actions or states that started in the past and continue to the present, as well as the use of specific time adverbs. Practice sentences are provided to illustrate these points.

1. The Perfect
Tenses

2. Ele não deixou
o cachorro
entrar

3. He hasn’t let
the dog in.

4. Eu acabei de
almoçar.

5. I have just
had lunch.

6. Você fez o seu
dever de casa?

7. Have you done
your homework ?

8. Usage

9. to talk about unfinished actions or states or habits
that started in the past and continue to the present.
A finished action with a result in the present (focus on
result).
to talk about actions in an unspecified time in the
past in life.

10. Structure

11. Subject + have/has + past participle
Subject + have/has NOT + past participle
Have/Has + subject + past participle

12. YET (já) to use in questions.
(ainda) to use in negative sentences.
ALREADY (já) to refer to a time until or before
now. We use already in affirmative sentences.
FOR (por/há)
SINCE (desde)
EVER (alguma vez) to use in negative and questions.
NEVER (nunca) to use in affirmative sentences.
to connect the past and the present.

13. Practice

14. It hasn’t snowed this winter
yet.
He hasn’t ever travelled outside
his country.

15. I haven’t eaten yesterday.
I didn’t eat
yesterday

16. We’ve been here for ten minutes.
We are here for ten
minutes.

17. Thank
you