may have been doing是什麼時態

　　We may have been doing him an injustice.

　　我們可能冤枉他了。

　　The attacker may have been waiting around for an opportunity to strike

　　襲擊者也許一直都在等待著動手的機會。

　　He may have been to some of those places

　　那些地方他也許去過一些。

　　One of these men may have been the murderer.

　　他們其中有一個人可能是殺人兇手。

　　You may have been socialized to do as you are told

　　也許你已經被同化了——讓你做什麼，你就做什麼。