1. have lived

2. have worked

3. has read

4. have known

5. haven't seen

6. haven't worked

7. hasn't done

8. have lost

9. has bought

10. have reserved 

11. have learnt / have learned

12. has played

13. hasn't rained

14. haven't seen

15. have studied

`\text{The Present Perfect :}`

1. Cấu trúc :

`\text{( + ) S + has/have + VpII + ..........}`

`\text{( - ) S + hasn't/haven't + VpII + .............}`

`\text{( ? ) Has/Have + S + VpII + ..........?}`

2. Dấu hiệu :

`->` `\text{Before, Yet, Since, For, Ever, Never, Just, ........}`

Put the verbs in brackets in the Present Perfect tense.

1. I (live) _____HAVE LIVED_______ here since 1989.

2. They (work) ____HAVE WORKED________ for this factory for 20 years.

3. He (read) _______HAS READ_____ this novel three times.

4. Hoa and I (know) _____HAVE KNOWN_______ each other since we were at the same class.

5. I (not see) ______HAVEN'T SEEN______ her since last month.

6. I (not work) _____HAVEN'T WORKED_______ today.

7. Nam (not do) _____HASN'T DONE_______ his homework yet

8. I (lose) ____HAVE LOST________ my pen. Can I borrow yours, please?

9. My father (buy) ______HAS BOUGHT______ an expensive new car.

10. A: I (reserve) ____HAVE RESERVED________ a room here for tonight. B: Yes, madam, what’s your name, please?

11. Peter and his brother (learn) _____HAVE LEARNT_______ English for three years.

12. Mr. Green (play) ______HAS PLAYED______ chess since eight o’clock.

13. It (not rain) _____HASN'T RAINED_______ since last week.

14. We (not see) ______HAVEN'T SEEN______ our new teacher yet.

15. I (study) _____HAVE STUDYED_______ very hard for this examination.

CÔNG THỨC:

(+)S+HAVE/HAS+V-ed

(-)S+HAVE/HAS+NOT+V-ed

(?)HAVE/HAS+S+V-ed