needn't have done用法needn't have done 用法 这是个什么句型?还有别的吗?别如must't have done等
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needn't have done用法needn't have done 用法 这是个什么句型?还有别的吗?别如must't have done等
needn't have done用法
needn't have done 用法 这是个什么句型?还有别的吗?别如must't have done等
needn't have done用法needn't have done 用法 这是个什么句型?还有别的吗?别如must't have done等
needn't have done 本来不需要做某事却做了(对过去的虚拟)
should/ought to have done 本不应该做某事却做了
must have done 一定做过某事
mustn't have done 在英语里面是没有的,这个句子是错误的,
can/might/could/may have done 本可能做某事
对过去动作进行推测的虚拟形式的句型, "本不必做..."
should have done 本应做某事(但事实上没做)
might have done本可能会...
couldn't have done 不可能做过某事
must have done... 一定做了某事
needn't have done用法needn't have done 用法 这是个什么句型?还有别的吗?别如must't have done等
区别shouldn't have done 和 needn't have done
英语中何时使用wouldn,t have done shouldn,t have done couldn,t have done needn,t have donewouldn have done shouldn have done could have done needn have done 呢
needn't needn't have done 和don't need to 的区别
musn't have done can't have done用法区别
needn't have done与shouldn't have done的区别?
needn't have done造句needn't have doneshould have doneremide sb to do sth造一个句子,有翻译
can't have done 的用法
关于英语ought to have done 与should have done的区别 有need have done needn,t have done 与should hneedn,t have done 与shouldn't have done 区别有need have done
can have done could have done should have done should to do shouldn't have done shouldn't to do还有needn't have doneneedn't domustn't have donemay not have donemight not have done
Needn't have done 和needn't do的区别!请告诉我具体的意思.还有,needn't do可以用在虚拟语气中吗?Needn't have done 一定要用在过去时态中吗?
needn't have done和didn't need to do 有什么不同?
didn't need to do 与needn't have done 的区别和相同点
情态动词+have done 用法及意义must have done need have done daren't have donecould never have done could have done
情态动词+have donemust have done/can't have doneshould have done/shouldn't have doneneed have done/needn't have donemay(might) have done/haven't donecould have done/couldn't have donewould have done/wouldn't have done如何用?我这样分正
Thanks.You ______ it.I could manage it myself A.needn’t doB.needn’t have done C.mus...Thanks.You ______ it.I could manage it myself A.needn’t doB.needn’t have done C.mustn’t do D.shouldn’t have done中B和D有什么区别?Catherine,I have
couldn't have done,不可能已经?请举例说明用法?
must/should/shouldn't/needn't/could/couldn't/may/mought+have done有什么区别?谢谢每一个词都加have done