4. 过去完成时的被动语态: had been +及物动词的过去分词
The dish had been eaten up when I got there.
5. 一般将来时的被动语态:will+ be + 及物动词的过去分词
A new hospital will be built in our city.
6. 含有情态动词的被动语态:情态动词+ be + 及物动词的过去分词
Young trees must be watered often.
7. 现在进行时的被动语态: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.
8. 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.