see sth done句型怎样变被动语态

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see sth done句型怎样变被动语态

sth is seen done 例如:
People saw a car hit by a truck.--> A car was seen hit by a truck.
这里的hit是动词to hit 的过去分词,hit的过去式和过去分词都是hit,所以没有to.

LS好像少了to?
应该有很多种,我可以比较确定的是这两种
be seen doing
be seen to do