see sb doing 的被动是什么呢?

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see sb doing 的被动是什么呢?

see sb doing 的被动是什么呢?
see sb doing 的被动是什么呢?

see sb doing 的被动是什么呢?
sb was seen doing sth.一般来讲,这个句型用主动的时态较常见.
We often see her wearing a red dress.
She is often seen wearing a red dress.

sb is seen doing

sb. be seen doing

sb is seen doing

I saw him singing songs in the classroom.
改成被动语态:
He was seen singing songs in the classroom.
see sb. doing sth.==sb. be seen doing sth.