Các công thức đổi HTHT - QKĐ

Structure 1: 

S + has/have + not + V3/ed + for/since + time 

--> S + last + V2/ed 

--> The last time + S+ V2/ed + was + time 

--> It is / has been + time + since + S+ (last) + V2/ed 

Structure 2: 

How long + has/have + S+ V3/ed?

--> When + did + S + V1?

--> How long is it + since + S+ V2/ed ?

Structure 3:

S + has/have + V3/ed + for/since + time 

--> S + started / began + to V / Ving 

--> It is / has been + time + since + S+ V2/ed 

Structure 4: 

S + has/have + not/never + V3/ed + ... before

--> This/It is the first time + S+ has/have+ V3/ed

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1. We haven't met for a long time.

2. How long have you had his computer? 

3. This is the first time my nephew Jane has drunk beer.

4. He has never visited Ha Long Bay before. 

5. She has worked here since last year.

6. We have eaten lunch since it started to rain.

7. I haven't had my hair cut since she left me.

8. He hasn't met me for 5 months.

9. How long have they opened this shopping center? 

10. The last time I went to the zoo was over the year ago. 

11. I haven't enjoyed myself since your farewell party. 

12. This is the first time I have lived in a luxurious building.

13. I haven't had such a delicious meal before.

14. The last time I went to work was a month ago.

15. It is 5 days since I last talked to him.

16. We haven't celebrated Christmas for 2 years.

17. The last time Linda had her teeth checked was last year.

18. Michelle has collected stamps since 2015.

19. How long is it since you last rode a motorbike? 

20. It's weeks since I last tided up your bedroom.

`color{orange}{~MiaMB~}`

1. We haven't met for a long time.

- It's + khoảng thời gian + since + S + last + V2/ed

-> S + haven't/hasn't + V3/ed + for + khoảng thời gian

2. How long have you had his computer? 

- When + did + S + V(bare)?

-> How long + have/has + S + V3/ed?

3. This is the first time my nephew Jane has drunk beer.

- S + have/has + never + V3/ed + before

-> This is the first time + S + have/has + V3/ed

4. He has never visited Ha Long Bay before. 

- This is the first time + S + have/has + V3/ed

-> S + have/has + never + V3/ed + before

5. She has worked here since last year.

- S + started/began + V-ing/to V + last Friday/ month/ year/ ...

-> S + have/has + V3/ed + since + last Friday/ month/ year/ ...

6. We have eaten lunch since it started to rain.

- S + started/began + V-ing/to V + when + QKĐ

-> S + have/has + V3/ed + since + QKĐ

7. I haven't had my hair cut since she left me.

- S + last + V2/ed + when + QKĐ

-> S + haven't/hasn't + V3/ed + since + QKĐ

8. He hasn't met me for 5 months.

- The last time + S + V2/ed + was + khoảng thời gian + ago

-> S + haven't/hasn't + V3/ed + for + khoảng thời gian

9. How long have they opened this shopping center? 

- When + did + S + V(bare)?

-> How long + have/has + S + V3/ed?

10. The last time I went to the zoo was over the year ago. 

- S + haven't/hasn't + V3/ed + for + khoảng thời gian

-> The last time + S + V2/ed + was + khoảng thời gian + ago

11. I haven't enjoyed myself since your farewell party. 

- N + was the last time + S + V2/ed

-> S + haven't/hasn't + V3/ed + since + N

12. This is the first time I have lived in a luxurious building.

- S + haven't/hasn't + V3/ed + before

-> This is the first time + S + have/has + V3/ed

13. I haven't had such a delicious meal before.

- This is the first time + S + have/has + V3/ed

-> S + haven't/hasn't + V3/ed + before

14. The last time I went to work was a month ago.

- S + haven't/hasn't + V3/ed + for + khoảng thời gian

-> The last time + S + V2/ed + was + khoảng thời gian + ago

15. It is 5 days since I last talked to him.

- S + haven't/hasn't + V3/ed + for + khoảng thời gian

-> It's + khoảng thời gian + since + S + last + V2/ed

16. We haven't celebrated Christmas for 2 years.

- S + last + V2/ed + khoảng thời gian + ago

-> S + haven't/hasn't + V3/ed + for + khoảng thời gian

17. The last time Linda had her teeth checked was last year.

- S + haven't/hasn't + V3/ed + since + last Friday/ month/ year/ ...

-> The last time + S + V2/ed + was + last Friday/ month/ year/ ...

18. Michelle has collected stamps since 2015.

- S + started/began + V-ing/to V + in + năm (thời gian trong quá khứ)

-> S + have/has + V3/ed + since + năm (thời gian trong quá khứ)

19. How long is it since you last rode a motorbike? 

- When + did + S + last + V(bare)?

-> How long is it since + S + last + V2/ed?

20. It's weeks since I last tided up your bedroom.

- S + haven't/hasn't + V3/ed + for + khoảng thời gian

-> It's + khoảng thời gian + since + S + last + V2/ed