1.陳述部分用had better +原形動(dòng)詞表示建議時(shí)，問(wèn)句部分用hadn't +主語(yǔ)形式。
①You'd better tell him about the matter,hadn't you?
②We had better do it by ourselves,hadn't we?
2.陳述部分用used to +主語(yǔ)時(shí)，問(wèn)句部分用didn't + 主語(yǔ)?或usedn't +主語(yǔ)形式。
①He used to live in the country,didn't he?/usedn't he?
②They used to be good friends,didn't they?/usedn't they?
3.陳述部分用must(may,might) + have + V-ed表示推測(cè)時(shí)，若句中帶有明顯的過(guò)去時(shí)間的狀語(yǔ)，問(wèn)句部分動(dòng)詞用過(guò)去時(shí)形式。如：
①He might have forgotten his pen in the classroom yesterday,didn't he?(不用mightn't he?/hasn't he?)
②You must have got up late this morning,didn't you?(不用mustn't you?/haven't you?)
4.陳述部分用must(may,might) + have + V-ed表示推測(cè)時(shí)，若句中沒(méi)有帶明顯的過(guò)去時(shí)間的狀語(yǔ)，問(wèn)句部分動(dòng)詞用現(xiàn)在完成時(shí)形式。如：
①Everyone must have known the death of the waitress,haven't they? (不用mustn't they?)
②You must have worked there a year ago,didn't you?(不用mustn't you?/ haven't you?)
5.陳述部分的主語(yǔ)為從句時(shí)，問(wèn)句部分的主語(yǔ)一般用it代替，如：
①What he said is true,isn't it? (不用didn't he?)
②Where we will build the dam has not been decided yet,has it? (不用won't we?)
6.陳述部分的主語(yǔ)為動(dòng)名詞或不定式時(shí)，問(wèn)句的主語(yǔ)用it代替。如：
①To do one good deed is easy for a person,isn't it?
②Skating is your favorite sport,isn't it?
7.陳述部分的主語(yǔ)是不定代詞one，反義疑問(wèn)句的主語(yǔ)可以用one，也可以用you。如：One should be ready to help others,shuldn't one?
①You'd better tell him about the matter,hadn't you?
②We had better do it by ourselves,hadn't we?
2.陳述部分用used to +主語(yǔ)時(shí)，問(wèn)句部分用didn't + 主語(yǔ)?或usedn't +主語(yǔ)形式。
①He used to live in the country,didn't he?/usedn't he?
②They used to be good friends,didn't they?/usedn't they?
3.陳述部分用must(may,might) + have + V-ed表示推測(cè)時(shí)，若句中帶有明顯的過(guò)去時(shí)間的狀語(yǔ)，問(wèn)句部分動(dòng)詞用過(guò)去時(shí)形式。如：
①He might have forgotten his pen in the classroom yesterday,didn't he?(不用mightn't he?/hasn't he?)
②You must have got up late this morning,didn't you?(不用mustn't you?/haven't you?)
4.陳述部分用must(may,might) + have + V-ed表示推測(cè)時(shí)，若句中沒(méi)有帶明顯的過(guò)去時(shí)間的狀語(yǔ)，問(wèn)句部分動(dòng)詞用現(xiàn)在完成時(shí)形式。如：
①Everyone must have known the death of the waitress,haven't they? (不用mustn't they?)
②You must have worked there a year ago,didn't you?(不用mustn't you?/ haven't you?)
5.陳述部分的主語(yǔ)為從句時(shí)，問(wèn)句部分的主語(yǔ)一般用it代替，如：
①What he said is true,isn't it? (不用didn't he?)
②Where we will build the dam has not been decided yet,has it? (不用won't we?)
6.陳述部分的主語(yǔ)為動(dòng)名詞或不定式時(shí)，問(wèn)句的主語(yǔ)用it代替。如：
①To do one good deed is easy for a person,isn't it?
②Skating is your favorite sport,isn't it?
7.陳述部分的主語(yǔ)是不定代詞one，反義疑問(wèn)句的主語(yǔ)可以用one，也可以用you。如：One should be ready to help others,shuldn't one?