might have been 和 cound have been的区别

来源：百度知道编辑：UC知道时间：2024/06/15 01:24:29

都是虚拟语气。但是使用的场景不同。
might have been 多用于猜测，比如：
He might have been to Beijing.他大概去过北京。
You might have said this before.（猜想）你也曾说过这些话。

could have been多用于原本可以（能力上可及）的事情却没有做。比如：
I could have caught up with you. 我本来可以来和你们聚会的(但却没有去)。
I could have been upset.我本来应该不高兴的（但是没有）

may => 是说事情发生的可能性，几率上的问题

can => 是说事情发生的可行性，能力上的问题

A: Will it rain tomorrow?
B: I don't know. It may.

A: Do you think Mary can finish the task today?
B: Of course, she can! I don't have any question about her ability.

might have been表过去本应该做的事而没有做语，而could have been 表示过去本能够做的事而没有做

cound have been可以用在虚拟语气中
而might have been 则不可以

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