The document discusses the present perfect tense. It begins by stating the present perfect tense is an imperfect verb tense. It then explains that the present perfect tense starts with the present form of have or has, is followed by a past participle, and talks about an event that occurred in the past but could potentially happen again in the future. It provides examples like "I have been to the moon" and discusses how words like "ever", "never", "just", and "so far" indicate an event could happen in the future. The document emphasizes practicing the present perfect tense to fully understand and retain it.

1. Tense Mission
The Search for the
Present Perfect
A very imperfect verb tense

2. Struggling with the present
perfect?

3. The Search for the
Present Perfect
Starts with the present, have or has
Talks about the past
Could happen in the future

4. The Search for the
Present Perfect
1. Starts with the present of to have
I have He has
I have been
to the moon.
present
perfect

5. The Search for the
Present Perfect
2. Finishes with a past participle
I have been
to the moon.
He has travelled
in space.
present
perfect

6. The Search for the
Present Perfect
Could happen in the future.

7. So far I went to the moon three times.

8. So far I went to the moon three times.
But maybe I’ll go again.
 So far I have been
to the moon three times.
present
perfect

9. Could it happen in the future?

10. Could it happen in the future?
Yes
present
perfect

11. 1st trip
2nd trip
3rd trip
today
present
perfect
I have been to the moon three times.
I could go again.

12. today
present
perfect
I have never been to the moon.
I could go in the future.

13. 1st trip
2nd trip
3rd trip
completed
today
I went to the moon three times.
I won’t go again.
past
simple

14. 2013
today
I went to the moon last year.
Last year is over.
past
simple

15. The Search for the
Present Perfect
Starts with the present, have or has
Talks about the past
Could happen in the future

16. Watch for these
warning words.

17. Warning words
ever/never
just
already
not yet
recently
so far

18. Warning words tell you it
could happen in the future.

19. Could go again
present
perfect
moon trip
today
I have just been to the moon.

20. Could go again
present
perfect
recent trip
today
I have recently been to the moon.

21. Could go again
1st trip
2nd
trip
present
perfect
3rd trip
today
I have already been to the moon.

22. Could go in the future
present
perfect
today
I have never been to the moon.

23. The Search for the
Present Perfect
Starts with the present, have or has
Talks about the past
Could happen in the future

24. The Search for the
Present Perfect
Could it happen in the future?

25. Tense Mission
The Search for the
Present Perfect
A very imperfect verb tense

26. The Search for the
Present Perfect
ends here.
Practice if you don’t want to lose it again.

27. The Search for the
Present Perfect
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