was doing是什么时态?

如题所述

一般过去时。was done包含两种语法,一个是被动语态be+done,还有一个是一般过去时。一般过去时的被动语态构成:was / were + 及物动词的过去分词。

示例:

主:He bought his children some pens.

被:Some pens were bought for his children by him.

被动语态的特殊结构形式

1、带情态动词的被动结构。其形式为:情态动词+be+过去分词。

The baby should be taken good care of by the baby-sitter.

2、有些动词可以有两个宾语,在用于被动结构时,可以把主动结构中的一个宾语变为主语,另一宾语仍然保留在谓语后面。通常变为主语的是间接宾语。

His mother gave him a present for his birthday.可改为He was given a present by his mother for his birthday.

3、当“动词+宾语+宾语补足语”结构变为被动语态时,将宾语变为被动结构中的主语,其余不动。

Someone caught the boy smoking a cigarette.可改为The boy was caught smoking a cigarette.

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