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过去的某个时间正在发生的动作的被动语态。最基本以及肯定式的结构是：Was / were + being +动词的过去分词；否定式结构是：was/were+not+being+done.
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。