不同时态下被动语态的构成形式被动语态是动词的一种特殊形式，一般来说，只有需要动作对象的及物动词才有被动语态。
汉语往往用被、受、给等被动词来表示被动意义 。
被动语态由助动词be+及物动词的过去分词构成。
被动语态的时态变化只改变be的形式，过去分词部分不变。
疑问式和否定式的变化也如此。
1.
一般遥时的被动语态构成：is / am / are + 及物动词的过去分词 　　Our classroom is cleaned everyday.
2.
一般过去时的被动语态构成：was / were + 及物动词的过去分词 　　A new shop was built last year.
3.
遥完成时的被动语态构成：has / have + been + 及物动词的过去分词 　　This book has been translated into many languages.
4.
一般将来时的被动语态构成：will+ be + 及物动词的过去分词 　　　　Many more trees will be planted next year.
5.
含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 　　Young trees must be watered often.
6.
遥进行时的被动语态构成：am / is / are + being + 及物动词的过去分词 　　Uncle Wang is mending my bike now.
→ 　　My bike is being repaired by Tom now.
7.
不定式的被动语态：to + be + 及物动词的过去分词 　　There are two books to be read.
→ 　　There are twenty more trees to be planted.