He seems to be eating
something I’m sorry
to have kept you waiting. 前 后 Pay special attention to: hoped promised wanted wished expected planned to have done 表示过去没有实现的期待和愿望 He wanted to have met you at
the airport, but he didn’t get
there in time.
We planned to have done good
deeds for the poor people last
month should
ought to need may might could would (not) have done (过去)本来…… 结果与事实相反 You should have finished
your homework.
We needn’t have worried
about him.
You shouldn’t have been there. must
can’t can may might could +
be n. / adj. / … be doing have done He must be ill. be waiting for us. have seen her. Nobody opened the door. She might (may) have left.
The road is all wet. It must have rained last night.
I saw him just now. He can’t
have gone to Shanghai. 主
动 被
动 一般式 doing being done 完成式 having done having been done 语态 时态 现在分词的时态和语态 现在分词的时态和语态: Having been to the Great Wall
many times, He didn’t go
there yesterday.
分词的动作发生在谓语动词 的动作之前 Not having received his
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