3)含有情態動詞的被動語態：

含有情態動詞的被動語態的結構：情態動詞+be+過去分詞。

如：You must shut these doors.你必須把這些門關上。(主動)

These doors must be shut.這些門必須關上。(被動)

You should have told him.你本應該告訴他。(主動)

He should have been told.本應該告訴他才是。(被動)

4)帶有直接賓語和間接賓語的句子，變為被動語態的時候，只把一個賓語變為主語，另外一個賓語保留在動詞后面，這種句子可以有兩個被動句。

如：His teacher gave him a book.他的老師給了他一本書。(主動)

A book was given to him by his teacher.(被動)

He was given a book by his teacher. (被動)

Someone gave her a dog.有人送給她一只狗。(主動)

A dog was given to her. (被動)

She was given a dog. (被動)

兩種被動語態中，第二種形式比第一種形式更為常用，即應該把間接賓語變為被動語態的主語。

5)含有復合賓語的主動句變為被動句時，將賓語變為主語，賓補仍保留在動詞之后，成為主補。

如：We call him Xiao Wang.我們叫他小王。(主動)

He was called Xiao Wang.他被叫小王。(被動)

We asked the teacher to explain the sentence again.我們要求老師把這個句子再解釋一次。(主動)

The teacher was asked to explain the sentence again.老師被要求把這個句子再解釋一次。(被動)

注：make, hear, watch, see, feel, let, have等動詞在主動語態中，其后作賓補的不定式一般不帶to，但當用于被動句時，后面作賓補的不定式必須帶有to。

如：She saw a man go into the room.她看見一個男人走進屋里。(主動)