CHUYỂN-ĐỔI-THÌ-QÚA-KHỨ-ĐƠN-SANG-THÌ-HIỆN-TẠI-HOÀN-THÀNH

CHUYỂN ĐỔI THÌ QÚA KHỨ ĐƠN SANG THÌ HIỆN TẠI HOÀN THÀNH

CHUYỂN ĐỔI THÌ QÚA KHỨ ĐƠN SANG THÌ HIỆN TẠI HOÀN THÀNH

1

S + began/ started + V-ing / To V … in + time (May, 1990,…)

time (years, month, ) + ago

 S + have/has + Ved/3……… since/ for + time

have/has + been + V-ing……

Ex: I started learning English five years ago  I have been studying English for five years

2

S + have/ has + not + Ved/3………for/ since + time

 a It’s + time + since + S + (last) + Ved/2

 b The last time + S + Ved/2… …was + time(years,month, ) + ago

in + time(May, 1990,…)

 c S + last + Ved/2 …… time + ago

in + time

Ex: She has lived here for many years It’s many years since she lived here.

I haven’t seen him for two months  It’s two months since I last saw him

I haven’t seen him for two months

 The last time I saw him was two months ago

 I last saw him two months ago

3

S + have/ has + (not) + Ved/3 ….+ since + S + Ved/2

 S + (last) Ved/2 + when + S + Ved/2

Ex: John hasn’t seen her since she left for Japan  John last saw her when she left for Japan

4

S + have/ has + not + Ved/3………before

 It/this/that is the first time + S + have/ has + Ved/3

Ex: I haven’t seen that man here before It is the first time I have seen that man here

5

How long is it since + S + Ved/2… ?

have/ has + S + Ved/3… ?

 When did + S + V0…….?

Ex: How long is it since you sold this car?  When did you sell this car?

6.

S + have/ has + never + Ved/3 + such (a/ an) + Adj + N

 It/this/that is the + Adj (superlative) + S + have/ has + ever + Ved/3

Ex: I’ve never met such an intelligent boy  This is the most intelligent boy I’ve ever met

7

Before + S + Ved/2………….S + had + Ved/3

After + S + had + Ved/3……….S + Ved/2

Ex: He played football but first he did all his homework

 Before he played football, he had done his homework

 After he had done his homework, he played football

8

S + had + hardly + Ved/3 + when + S + Ved/2

= Hardly + had + S + Ved/3 + when + S + Ved/2

 S + had + no sooner + Ved/3 + than + S + Ved/2

= No sooner + had + S + Ved/3 + than + S + Ved/2

Ex: He had hardly seen me when he ran away  He had no sooner seen me than he ran away

EXERCISES

Rewrite the following sentences without changing their meaning.

1 My aunt has been teaching English for 40 years

 My aunt began………

2 We started looking for a flat 2 months ago and we are still looking

 We've ………

3 I have played football for ages

 It’s ages ………

4 The last time I went to Hanoi was over fours years ago

I ………

It’s ………

5 I haven’t heard from him since July

I last ………

The last time I ………

6 I last saw her when she returned to her home town

 I haven’t seen her ………

7 I haven’t gone swimming since we were in Spain

 I last ………

8 She hasn’t seen her mother since she left for Pairs

 She ………

9 She hasn’t spoken Japanese before

 It’s the first time ………

10 This is the first time she has driven a car

 She ………

11 How long have you sold your old house?

 When did you sell………

12 I have never met such a nice person

 It's ………

13 I has never seen such a beautiful building

14 I went over my lesson and then went to school

 Before I ………

 After the children ………

16 He had hardly begun the trip when he fell ill

 Hardly ………

17 As soon as they arrived on the beach, it started to rain

→ They had no sooner ……… ………