trước before  QKHT sau before QKĐ

trước after  QKĐ          sau  QKHT

Hành động đang tiếp diễn was/were V_ing

Hành động xen vào QKĐ 

2 hành động xảy ra cùng lúc chia cả 2 ở was/were V_ing

2 met

3 went/ had read

4 didn't wear

5 was starting

6 listened/had done

7 had gone/ went

8 went/ had finished

9 had already seen

10 went

11 didn't eat

12 had already begun

13 watched/had done

14 was/  was

15 had gone/sat/rested

16 had gone/went

17 had won

18 told/ had visited

19 had/prepared/went

20 had/ watched/rang

21 watched/  had done

22 had washed/ slept

23 was/ had eaten

24 had broken

25 hadn' t worked/ would have attended

26 had 

27 were staying

1 were sitting/ rang

2 met/ was working

3 left/ was shining

4 were playing/ came

5 was sleeping/ were watching

6 started/ was watering

7 opened/ was raining

8 was having/ was swimming

9 was hearing/ was talking

1 were playing

2 was preparing

3 were playing

4 was practicing

5 didn' t cycle

6 was working/ were swimming

7 didn't listen

8 did you do

9 sat

10 was listening/ was watching

11 were playing