含情态动词的被动语态
The room must be cleaned every morning
The flowers should be watered every day
一般现在时的被动语态
French and English are spoken in Canada
一般过去时的被动语态
The bridge was built last year.
现在完成时的被动语态
Five trees have been planted by the students
含双宾语的被动语态
A book was passed to him
He was passed a book
使役动词或感官动词的句子变为被动语态要带上to
The boy is made to read English every day by his parens