过去进行时被动语态的结构

1、过去进行时态的被动语态的肯定式为：was/were+being+done。

如：Computer was being majored by him during his college. 他那时正在大学学计算机专业。

Another bridgewas being built over the Changjiang River then. 那时长江上正在建造另一座大桥。

2、过去进行时态的被动语态的否定式为：was/were+not+being+done。

如： The movie star wasn't being stalked by a fan. 那个电影明星正在被一个粉丝跟踪.

3、过去进行时态的被动语态的一般疑问句需将was/were提到主语的前面。（回答用yes或no）

如：Was a new library being put up in their school just then？他们学校当时正在建一座新图书馆吗。