Supply the correct verb forms: 1. I’m busy at the moment; I (redecorate) the sitting room. 2. I always (buy) lottery tickets but I never (win) anything. 3. How you (get) that scar? I (get) it in a car accident a year ago. 4. I (work) for him for ten years and he never once (say) “Good morning” to me. 5. The driver of that car (sound) his horn for the last ten minutes. 6. I (teach) hundreds of students but I never (meet) such hopeless one. 7. You (feel) better when you have had a meal. 8. I am sure that I (recognize) him. 9. He (lose) his job last month and since then he (be) out of work. 10. I (see) a car accident while I (wait) for you on this corner yesterday. 11. Mr. John (be) the principal of our school since last year. 12. Violets (bloom) in spring. 13. We (not live) in England for two years now. 14. I never (forget) what you just (tell) me. 15. They (prepare) the Christmas dinner at the moment. 16. When I last (stay) in Cairo, I (ride) to the Pyramids on a camel that my friend (borrow) the day before. 17. George (work) at the university so far. 18. When he lived in Manchester, he (work) in a bank. 19. Birds (build) their nests in the summer and (fly) to the south in the winter. 20. I (lose) my key. Can you help me (look) for it? 21. My father (not smoke) for 5 years. 22. My teacher wasn’t at home when I (arrive). He just (go) out. 23. How long Bob and Mar (be) married? 24. You (receive) any letters from your parents yet? 25. My brother (join) into the army when he (be) young. 26. You (remember) my name or you (forget) it someday? 27. Tom (study) chemistry for three years and then he gave it up. 28. Miss Lee often (write) home when she was on holiday. 29. He (leave) home two weeks ago and we (not hear) from him since then. 30. You (speak) to Mrs. Baker yesterday? No, I (not see) her for a long time. I (not can/ remember) when I last (see) her.

Công thức thì HTHT

(+) S + has/have + V3/ed 

(-) S + has/have + not + V3/ed 

(?) Has/Have + S+ V3/ed?

DHNB: before, since + mốc thời gian, for + khoảng thời gian, yet, already, just,....

Công thức thì HTĐ (V: thường)

S số ít, he, she, it 

(+) S + Vs/es

(-) S+ doesn't + V1 

(?) Does +S +V1?

S số nhiều, I, you, we, they

(+) S + V1 

(-) S+ don't + V1 

(?) Do + S+ V1? 

DHNB: always, usually, sometimes, often, never, seldom,....

Công thức thì TLĐ

(+) S + will + V1 

(-) S + won't + V1 

(?) Will + S+ V1? 

DHNB: in the future, in + năm ở TL, in + time, next week, next year, ....

Công thức thì HTTD 

(+) S + am/is/are + Ving 

(-) S + am/is/are + not + Ving 

(?) Am/Is/Are +S +Ving? 

DHNB: now, right now, (!), at present, at the moment,.....

Công thức thì QKTD 

(+) S + was/were + Ving 

(-) S + was/were+ not + Ving 

(?) Was/Were +S +Ving? 

Công thức thì QKĐ (V: to be)

(+) S + was/were + ... 

(-) S + was/were + not ... 

(?) Was/Were + S ... ? 

S số ít, I, he, she, it + was

S số nhiều, you, we ,they + were

Công thức thì QKĐ (V: thường)

(+) S + V2/ed 

(-) S + didn't + V1 

(?) Did + S+ V1?

DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...

-------------------------------------------------

1. am redecorating

DHNB: at the moment (HTTD) 

2. buy / have never won 

DHNB: always (HTD) never (HTHT) 

3. did you get / got 

DHNB: ago (QKD)

4. have been working /has never once said

DHNB: for ten years (HTHTTD)

S + has/have+  been + Ving 

DHNB: never (HTHT)

5. has been sounding 

DHNB: for the last ten minutes (HTHTTD) 

6. have taught / have never met

DHNB: never (HTHT)

7. will feel

TLD + when + HTĐ

8. will recognize

S + be + sure + S+ will + V1 

9. lost / has been 

DHNB: last month (QKD), since then (HTHT) 

10. saw / was waiting

QKĐ + while + QKTD: hđ đang xảy ra thì có hđ cắt ngang 

11. has been

DHNB: since last year (HTHT)

12. bloom

13. haven't lived

DHNB: for two years now (HTHT)

14. will never forget / have just told 

DHNB: just (HTHT)

15. are preparing

DHNB; at the moment (HTTD) 

16. stayed / rode / had borrowed

DHNB: last (QKD)

hđ xảy ra trước hđ trong quá khứ --> QKHT

QKHT: S + had + V3/ed 

17. has worked

DHNB: so far (HHT)

18. worked

When + QKĐ, QKĐ

19. build / fly

20. have lost / look

help + O + V1: giúp ai làm gì 

21. hasn't smoked

DHNB: for 5 years (HTHT)

22. arrived / had just gone

Hành động xảy ra trước --> QKHT

Hành động xảy ra sau --> QKĐ

23. have Bob and Mar been 

24. Have you received

DHNB: yet (HTHT)

25. joined / was 

QKĐ + when + QKĐ

26. Will you remember/will forget

DHNB: someday (TLD)

27. had studied

28. wrote

29. left / haven't heard

DHNB: ago (QKD), since (HTHT)

30. Did you speak / haven't seen / couldn't remember / saw

DHNB: yesterday (QKD), for a long time (HTHT)