1、一般疑问句直接将陈述句被动语态中的情态动词提前。如： Must this work be done at once？这项工作必须立即完成吗？ Should your homework be finished before six？你的家庭作业应在六点前完成吗？
2、特殊疑问句由疑问词加上一般疑问句被动语态构成。如： When must this work be done？这工作必须在什么时候完成？ Where can the lost book be found？这本失踪的书能在什么地方被找到？
3、反意疑问句借助情态动词构成附加疑问部分。如： This bridge can be built next year，can't it？这座桥能建成，是吗？ This book shouldn't be taken out of the library，should it？这本书不应被带出图书馆，是吗？
扩展资料：
一般用法
1、一般现在时的被动语态构成：is / am / are +及物动词的过去分词
Our classroom is cleaned everyday.
I am asked to study hard by my mother.
Knives are used for cutting things.
2、一般过去时的被动语态构成：was / were + 及物动词的过去分词
The new shop was built last year.
Dinosaur eggs were laid long long ago.
3、现在完成时的被动语态构成：has / have + been +及物动词的过去分词
This book has been translated into many languages.
Many man-made satellites have been sent up into space by many countries.
4、一般将来时的被动语态构成：will+ be + 及物动词的过去分词
A new hospital will be built in our city.
Many more trees will be planted next year.
5、含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词
Young trees must be watered often.
Your mistakes should be corrected right now.
The door may be locked inside.
Your homework can be handed in tomorrow.
6、现在进行时的被动语态构成：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.
They are planting trees over there. →
Trees are being planted over there by them.
7、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.
参考资料来源：百度百科-被动语态