Thì QKHT: S had VPII
- DHNB: by the time, after, before,...
Thì HTHT:
S have/has(not) VPII
Have/has S VPII?
Wh- have/has S VPII?
DHNB: already, since, for, just, already, so far,...
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10. had sold
11. have had
12. have done
13. Have you been
14. Have you done
15. have cut
16. are dancing
17. will turn
18. have looked
19. has eaten