情态动词+have done

情态动词+have done
must have done/can't have done
should have done/shouldn't have done
need have done/needn't have done
may(might) have done/haven't done
could have done/couldn't have done
would have done/wouldn't have done
如何用?我这样分正确吗?
有 might not /may not +have done
would/wouldn't have done
英语人气:115 ℃时间:2019-09-17 20:16:49
优质解答
情态动词+ have done都是表示对过去动作的推测must have done 过去一定做了某事should /need have done本来应该/需要做某事(却没做)should't/needn't have done本来不应该/不需要做某事(却做了)may/might h...
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