一）一般现在时
被动语态：
主语＋be＋动词过去分词＋by(加宾格)
eg: He waters the flowers every day.
The flowers are watered by him every day.
二）一般过去时
被动语态：主语＋was\were＋动词过去分词
eg： He took care of his little brother yesterday.
His little brother was taken care of by him yesterday
三）现在进行时
被动语态：主语加am\is\are加being加动词过去分词
例句:Helen is writing a letter.
A letter is being written by helen.
四）过去进行时
被动语态：主语+was\were+being+动词过去分词
eg：He was making a model plane.
A model plane was being made by him.
五）现在将来时
主语+be going to be+动词过去分词
eg：They will clean the windows tomorrow.
The windows will be cleaned by them.
六）过去将来时
主语+was/were going to be +动词过去分词
eg:He said he would finish the project by the time we reached there.
He said the project would be finished by the time we reached there.
七）现在完成时
主语+have/has + been+动词过去分词
eg：he has sung a nice song.
A nice song has been sung by him.
八） 过去完成时
主语+had +been +动词过去分词
eg：He had posted the letter .
The letter had been posted by him.
追问能不能写十句出来，我真心不懂，这是假期作业
本回答被网友采纳