英语语法中，过去进行时被动语态指的是在过去某个时间正在进行的动作，而且这个动作是被动形式，即主语是动作的接受者。下面是一些过去进行时被动语态的例句，希望能够帮助大家更好地理解这一语法规则。
- The cake was being baked when I arrived at the bakery. （我到达面包店时，蛋糕正在烘焙。）
- The car was being repaired by the mechanic when I called the garage. （我给修车厂打电话时，汽车正在被机械师修理。）
- The house was being painted when it started raining. （下雨时，房子正在被涂漆。）
- The movie was being watched by many people when the fire alarm went off. （火警响起时，很多人正在看电影。）
- The report was being written by the intern when the boss came into the office. （老板进入办公室时，实习生正在写报告。）
以上是一些过去进行时被动语态的例句，希望能够帮助大家更好地理解这一语法规则。如果大家有其他疑问或需要更多帮助，可以参考相关英语语法书籍或咨询英语老师。
