I might have taken another path.

　　我本可以走另一条路。

　　may not/mightnt have done 表可能不

　　之前我们讲到过 cant/couldnt have done 是表示不可能，而 may not/mightnt have done 则是表示可能不，要注意区分哦：

　　He cant have been at the meeting， hes on a business trip this week.

　　他不可能有出席会议，他这周出公差。

　　We couldnt have done it without you.

　　没有你我们肯定完成不了。

　　They may not have known it beforehand.

　　他们事先可能不知道这事儿。

　　They mightnt have regarded me as their friend.

　　他们可能没有把我当作朋友看待。

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