情态动词反意疑问句反意疑问句的主句里如果有情态动词和完成时态(有可能还有否定形式),那么反意疑问句怎么变?最好具体点.

情态动词反意疑问句反意疑问句的主句里如果有情态动词和完成时态(有可能还有否定形式),那么反意疑问句怎么变?最好具体点.
情态动词反意疑问句
反意疑问句的主句里如果有情态动词和完成时态(有可能还有否定形式),那么反意疑问句怎么变?最好具体点.

情态动词反意疑问句反意疑问句的主句里如果有情态动词和完成时态(有可能还有否定形式),那么反意疑问句怎么变?最好具体点.
一般情况下是和普通反意疑问句一样,在情态动词上改,比如.
You can play piano, can't you?
He can't go to school today, can he?
但注意下列情况:
1 当陈述部分带有情态动词ought to时,反意疑问部分在英式英语中用ought to 形式,在美式英语中用should形式.例如：
You ought to see the new picture,shouldn't you?
Teachers ought to be honoured,oughtn't they?
2 当陈述部分带有情态动词used to时,反意疑问部分可以用used to形式,也可以用did形式.例如：
She used to live abroad,usedn't she?
There used to be a newsstand in the corner of the street,didn't there?
3 当陈述部分带有情态动词must时,反意疑问部分需视must的含义而定.
a.当must表示“命令或强制”时,反意疑问部分用mustn't.例如：
You must do it by yourself,mustn't you?
b.当must表示“有必要”时,反意疑问句用needn't,例如：
You must see him tonight,meedn't you?
c.当must表示“一定”或“想必”等推测意义时,反意疑问部分不用mustn't,而根据must后的动词形式而定.例如：
He must be crazy to do so,isn't he?
She must have been there for a long time,hasn't she?
They must have stayed at home last might,didn't they?
4 当陈述部分带有need时,反意疑问部分需视need的含义而定.如果need用作情态动词,则反意疑问部分用need形式；如果need用作实义动词,表示“需要”,则反意疑问部分用do形式.例如：
You needn't go there,need you?
She needs to fo there,doesn't she?
Plants need sun to grow,don't they?

陈述部分有must 的疑问句，疑问部分根据实际情况而定。
He must be a doctor, isn't he?
You must have studied English for three years, haven't you? / didn't you?
He must have finished it yesterday, didn't he?

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陈述部分有must 的疑问句，疑问部分根据实际情况而定。
He must be a doctor, isn't he?
You must have studied English for three years, haven't you? / didn't you?
He must have finished it yesterday, didn't he?
否定词移位的情况，如：
I don’t suppose (that) he is serious, is he?
陈述句是否定形式时，简短问句中动词的选择则由陈述句中的动词形式而定。例如：
He hasn’t a house of his own, has he?
He doesn’t have a house of his own, does he?
在否定的祈使句后， 只能用will you。例如:
Don’t forget, will you?
具体的可以看看http://baike.baidu.com/view/201301.htm
里面说的很详细，我抽出来的是你问的部分，但是我觉得你还可以看看，
就能理解的更详细了。因为你没有给例句，自己看了就更清楚。

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