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问题: make sb do变被动是——be made to do

make sb do变被动是——be made to do
hear sb do变被动是什么
hear sb doing变被动是什么?为什么变法不一样呢?

解答:

make sth done -> sth. be made done

hear sb do sth. -> sb. be heard to do sth.

hear sb doing sth. -> sb. be heard doing sth.

这里语态的变化都是针对的谓语的宾语变为主语后的情形,而不是非谓语的宾语变为了非谓语的逻辑主语即此处的谓语的宾语而言的。

举个例子来说,一下四个句子意思是等同的:
I heard you singing these three songs all the morning.
You were heard singing these three songs by me all the morning.
I heard these three songs sung(注意此处) by you all the morning.
These three songs were heard sung all the morning.