The document discusses the present perfect and present perfect continuous tenses. It provides the forms and usages of each tense. The present perfect is used to talk about actions that started in the past and continue to the present or actions that have a result in the present. The present perfect continuous emphasizes the continuing nature of a past action that remains unfinished or has recent effects in the present.

1. PRESENT PERFECT
And
PRESENT PERFECT CONTINUOUS
TENSE

2. PRESENT PERFECT
Tense

3. FORM
Affirmative: Subject + Have / Has + Past Participle

4. USAGE:
 To talk about an action which started in the past and
continuous up to now.
I have been a teacher
for more than ten years.
We haven't seen
Janine since Friday.
How long have you
been at this school?

5. USAGE:
To talk about experiences. It is important if we have done
it in our lives or not. It is not important when we did it.
I have been abroad two times..
Example:
Have you ever eaten sushi?
John has never broken a leg

6. USAGE:
 To talk about a past action that has the result in the present.
Jimmy has gone to South America. = He isn't here now.
Have you finished your homework? = Is your homework
ready?
Example:
Tip! => often use just, already and yet
I have lost my wallet. = I don't have it now.

7. PRESENT PERFECT
NUOUSCONTI
Tense

8. FORM
Affirmative: Subject + Have / Has + Been + V-ing
Negative: Subject + Haven't / Hasn't + Been + V-ing
Question: Have / Has + Subject + Been + V-ing

9. USAGE:
 Actions that started in the past and are still happening now
( We began waiting 20 minutes ago and we are
still waiting now )

10. USAGE:
. Actions have just finished but have results in present
Example:
It has been raining ( the streets are still wet)
Someone has been eating my chips (= half of them have gone).