if you need to knw about present perfect tense watch his presentation

1. Present Perfect Tense
 Form
I I
You You
We have We haven’t finished
They ( ‘ve ) Finished They
He He
She has finished She hasn’t finished
It ( ‘s ) It

2. Examples:
I have met a tourist.
Ali has written a letter.
We have bought a new car.
The boys have broken the window.
He has been to the UK.
Ahmad has eaten all rice.

3. When to use the present perfect?
 1)Actions that happened in the past but
which has a result in the present.
 Look! The boy has spilt coffee here.
 Oh! You have drunk the tea. The glass is
empty.
 I have learned English.
 Ali has played football.

4.  2) Actions that are completed up to now
without stating a specific time:
 We have already bought a new car.
 They have called you.
3) Actions that started in the past and continues
into the present:
I’ve lived in London for three years.

6. F0R (period) SINCE(Time point)
 A week  1998
 A year  2001
 Two hours  Last week
 Three days  June
 Five weeks  He was a child
 Three months  They moved to Muscat
 A while
 Three minutes
 A long time

8. Thanks for listening