究竟can't have done与could't have done有什麼分别?有些人说是现在与过去的分别.有些人说是可能些较大和较小的分别.究竟是哪个才对?对不起,打错字了,是可能性。不是可能些。

can’t +have done musn't have done can't have done用法区别 can't have done 的用法 究竟can't have done与could't have done有什麼分别?有些人说是现在与过去的分别.有些人说是可能些较大和较小的分别.究竟是哪个才对?对不起,打错字了,是可能性。不是可能些。 can't be和can't have done must have done,must do,can't have done,can't do的区别 can have done和could have done有无区别?can't have done和couldn't have done有无区别?如果有,区别是什么? mustn't have done和can't have done的区别最好有例子 could't have done和can't have done的区别 can't be done.should be done.should have done什么意思哈.. 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 用must have been/done或can*t have been/done 改写句子 can have ddone 与could have done 的区别在于? can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may 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 needn't have done与shouldn't have done的区别? 有没有can have done sth?could have done sth有两种意思吗?can't/couldn't have done sth意思又是什么能不能举几个例子?