1、动词一般现在时被动语态
am/is/are+过去分词
English is widely used at international meetings.英语在许多国际会议上广泛使用。
Computers are sold in the shop.那家商店出售电脑。
2、动词一般过去时被动语态
was+过去分词
were+过去分词
Many new buildings were put up lastyear.去年造了许多新楼房。
That song was sung by the singer at the party.聚会上那首歌被那位歌星唱过。
3、动词一般将来时被动语态
Shall/will/be going to be+过去分词
The play will be put on soon.这个戏不久将要上演。
The old house is going to pulled down soon.那幢旧房子很快就要被拆掉。
4、动词现在进行时被动语态
am/is/are+being+过去分词
A language lab is being built in our school.我们学校正在建造一个语言实验室。
The old bikes are being repaired now.旧自行车正在修理。
5、动词过去进行时被动语态
was+being+过去分词
were+being+过去分词
Mother said that my dirty clothes were being washed.母亲说我的脏衣服正在洗。
When I went to the watch shop,my watch was being fixed.我到手表店的时候，我的手表正在修。
6、动词现在完成时被动语态
have been+过去分词
has been+过去分词
The jobs have been finished.这些工作已被完成了。
That dirty place has been turned into a garden.那个脏地方已被变成一座花园。
被动语态
1一般现在时：be+done
2过去时：was/were+done
3将来时：will+be+done
4现在进行时：be+being+done
5过去进行时：was/were+being+done
6过去将来时：would+done
7过去完成时：had+been+done
8现在完成时：have/has+been+done
9情态动词:情态动词+be+done本回答被提问者采纳
B was done by A. 被动态。