while后跟动词什么形式

问题描述

精选答案

1.while后面直接加动词时,动词形式一般要分为两种情况.

2.如果该动词和主句主语之间为主动关系,则一般用其现在分词形式即Ving.

如：While watching TV,I heard a knock at my door.

= While (I was) watching TV,I heard a knock at my door.

3.但是,如果该动词和主句主语之间为被动关系时,则用其过去分词形式.

如：While beaten by his father,the boy cried.

= While (the boy was) beaten by his father,the boy cried.