26. stayed
Last winter → QKĐ
27. always writes
always → HTĐ
28. did
last summer → QKĐ
29. Has, phoned
yet → HTHT
30. saw, saw
last Sunday → QKĐ
31. lost
Last night → QKĐ
32. lost
Hành động đã xảy ra → QKĐ
33. have visited
three times → HTHT
34. visited
Last year → QKĐ
35. knew
when I was eight → QKĐ
36. have known
for three years → HTHT
37. have played
*Cấu trúc thì quá khứ đơn:
(+) S + V_ed/ V2
(- ) S + didn't+ V_inf
(? ) Did + S + V_inf?
*Cấu trúc thì hiện tại hoàn thành:
(+) S + has/ have + V_ed/ V3
(- ) S + has/ have + not + V_ed/ V3
(? ) Has/ Have + S + V_ed/ V3?