should have done和could have done（should have done）

大家好,小奥来为大家解答以上的问题。should have done和could have done，should have done这个很多人还不知道,现在让我们一起来看看吧！

1、should have done sth. : 本来应该做某事(但实际上没做)should not have done sth. : 本来不应该做某事(但实际上做了)比如:You should not have listened to him. 你本不该听他的You should have finished your work by now. 你现在本该已经把工作做完了。

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