Cấu trúc thì quá khứ hoàn thành:

`(+):` S + had + pii.

`(-):` S + hadn’t + pii.

`(?):` Had + s + pii?

`4.` had got - didn't go

`5.` had left - had said

`6.` arrived - had left

`7.` went - had finished

`8.` went - had done

`9.` got - had already begun

`10.` had decorated - went

`11.` ate - had cooked

`4.` had got/ didn't go

`-` get - got - got/ gotten: lấy

`5.` had/ had said

`-` say - said - said: nói

`6.` arrived/ had left

`7.` went/ had finished

`-` go - went - gone: đi

`8.` went/ had done

`9.` got/ had already begun

`-` begin - began - begun: bắt đầu

`10.` had decorated/ went

`11.` ate/ had cooked

`-` eat - ate - eaten: ăn

______________________

`-` Before/ When + QKĐ, QKHT

`-` After + QKHT, QKĐ

`-` Thì quá khứ hoàn thành: S + had + (not) + V(pp)

`-` Thì quá khứ đơn:

$(+)$ S + Ved/ V2

$(-)$ S + didn't + Vinf