This document discusses the present perfect tense in English and provides examples of its common uses. The present perfect is used to describe an action that began in the past and has relevance in the present. It gives examples of the present perfect used to indicate a result of a past action that is important now, a recently completed action, and a state that began in the past and continues. The document also explains the difference between using "for" with a period of time and "since" with a specific time when an action started.

6. [has/have + past participle]
Examples:
You have seen that movie many
times.
Have you seen that movie many
times?
You have not seen that movie many
times.

7. 1) Result of an action in the past is
important in the present
I have cleaned my room.
2) Recently completed action
He has just played handball.
3) State beginning in the past and
still continuing
We have lived in Canada since 1986.
4) together with lately, recently, yet
I have been to London recently.

8. Just, yet, never, already, ever, so
far, up to now, recently, since, for
We use for with a period of time, for
example: a few days, half an hour, two years.
We use since with the time when the action
started, for example: last year, June 8, I met
you.

9. Past simple: Finished action with no
relevance now: Yesterday, Last
week, Last night, this morning (if
it’s finished)
Present perfect: actions in the past
with an effect now: I have bought
some food.