（1）一般现在时的被动语态构成：is / am / are + 及物动词的过去分词。例如：
Our classroom is cleaned every day.
（2）一般过去时的被动语态构成：was / were + 及物动词的过去分词。例如：
A new shop was built last year.
（3）现在完成时的被动语态构成：has / have + been + 及物动词的过去分词。例如：
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。例如：
A new hospital will be built in our city.
（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。
（6）现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词。例如：
My bike is being repaired by Tom now.
（7）过去完成时的被动语态构成：had + been + 及物动词的过去分词。例如：
My shoes had been cleaned by somebody.
（8）动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。例如：
He can’t be laughed at by us.
The sick man is being taken care of by the nurse.
