1. I had already written my letter when my sister returned from her work.
2. I had written my letter by 6 o'clock.
3. He hadn't finished his work у 5 o'clock.
4. After I had got the telegram I went to meet her.
5. She will have come home by 6 o'clock.
6. She will come home at 6 o'clock.
7. Had you done your homework before your parents came home?
8. Will you have done your homework before your parents come home?
9. Have you done your homework?
10. When did you do your homework?
11. He said (that) he had seen this film.
12. After he had passed his exams he went to visit his parents.
13. I hope you will not have forgotten me by the end of the year.
14. I hope you will not forget me.
15. Before she entered the University she had worked at our factory.
IV. Дополнительный грамматический материал
Герундий (The Gerund) –
неличная форма глагола, которая называет действие. Он образуется путем прибавления окончания -ing к основе глагола.Особенность написания:
to write – writing;
to run – running;
to lie – lying.
Простой герундий выражает действие:
a) одновременное со сказуемым предложения: I like reading...
или
b) предшествующее сказуемому после глаголов: remember, thank, excuse, forget;
после предлогов: after, before, without, since, on etc:
I remember running to the river in summer.
On coming home I turned on the TV-set.
Перфектный герундий выражает действие, предшествующее сказуемому; он образуется из having
+ III форма основного глагола (Participle II):I am sure of having seen her yesterday.
Пассивный герундий называет действие, которое испытывает на себе подлежащее; он образуется из being + Participle II:
I like being invited to their house.
После глаголов to need, to want, to require, worth
(This film is worth seeing.
1) как дополнение после слов: enjoy, excuse, forgive, give up, fear of, remember, hate, dislike, approve of, speak of, think of, be tired of, agree to, look forward to, depend on, insist on, rely on, prevent from, feel like, look like, be sorry for, thank for:
She enjoyed being at the sea.
2) как обстоятельство после предлогов: after, before, on, upon, in, at, by, without, for, in spite of, instead of:
She thanked me for helping him.
Instead of stopping the rain increased.
3) как часть составного глагольного сказуемого после глаголов: begin, continue, stop, finish, go on, keep on:
She kept on talking.
4) как определение после слов: idea, thought, chance, hope, importance:
I liked the thought staying with you.