初中 被动语态的题怎么做啊，麻烦最好详细说一下，谢谢

：被动形式是：be+过去分词（动词加-ed）
be动词根据时态要有相应的变化。
一般现在时 am/is/are+过去分词 The room is often cleaned.房子经常被打扫。
现在进行时am/is /are+being +过去分词 The room is being cleaned now.房子正在被打扫。
一般过去时was/were+过去分词 The room was cleaned yesterday.房子昨天被打扫了。
过去进行时was/ were+过去分词 The room was being cleaned at 10 yesterday morning.
现在完成时have/has been+过去分词 The room has been cleaned. 房子已经被打扫了。
过去完成时had +过去分词 He said the room had been cleaned the day before
一般将来时will +过去分词 The room will be cleaned tomorrow.
过去将来时would+过去分词 He said the room would be cleaned the next day.
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记住：被动形式是：be+过去分词（动词加-ed）
be动词根据时态要有相应的变化。
一般现在时 am/is/are+过去分词 The room is often cleaned.房子经常被打扫。
一般过去时was/e\were+过去分词 The room was cleaned yesterday.房子昨天被打扫了。
现在完成时have/has been+过去分词 The room has been cleaned. 房子已经被打扫了。
祝你学习进步！
望采纳，多谢！