5. be cheated
let sb Vnt: để ai làm gì...
6. wouldn't have been
but for: nếu không nhờ có
7. had forgotten
8. wouldn't be
câu điều kiện hỗn hợp: If S had(not) VPII, S would(not) Vnt.
9. having seen...unidentified...flying
10. sinking...has always been remembered
11. defending
12. should have had...renewed