感官动词有see,watch,observe,look at, hear, listen to ,notice有被动语态!
用法：感官动词+宾语+do,在用作被动语态要补出to.
例如:I heard her sing an English song just now.
She was heard to sing an English song just now.
感官动词 为什么说它没有被动语态,又说它的被动语态要在感官动词后加to呢?
感官动词有see,watch,observe,look at, hear, listen to ,notice有被动语态!
用法：感官动词+宾语+do,在用作被动语态要补出to.
例如:I heard her sing an English song just now.
She was heard to sing an English song just now.