eg. Look at the blackboard, will you/won't you?
1）Let's…，后的反意疑问句用shall we或shan't we。
eg. Let's go home, shall we/shan't we?
2）Let us/me…后的反意疑问句用will you或won't you。
eg. Let me have a try, will you/won't you?
What a lovely puppy, isn't it?
eg. He needs help, doesn't he?
4.陈述部分主、谓语是I am…时，反意疑问句用aren't I 或ain't I ,而不是am not I （可用am I not）。
I'm working at that time, ain't I?
eg. One should be ready to face difficults of life, shouldn't one?
6.当陈述部分含有以下这些含有否定意义的词时：few, little, seldom，hardly, never, not, no, no one, nobody, nothing, none, neither等，其反意疑问句需用肯定结构。
eg. It's hardly to say, isn't it?
7.当陈述部分含I think (believe, suppose…) that… 结构时，其反意疑问句须与从句的主、谓语保持一致，注意主句的主语必须是第一人称。例如：
eg. I don't think he will come, will he?
8.have(has)不是表示“有”的意思，并在句中做谓语时，其反意疑问句的助动词要用do, does, did。
eg. They had a meeting just now，didn't they?
9.陈述部分有have to 时，其反意疑问句要用助动词的否定形式。
eg. You have to go to school every day, don't you?
eg. There was a hospital on this street, wasn't there?
11.当陈述部分含有情态动词must时，有两种情况，① 如果must 作“一定；要；必须”讲，反意疑问句须用mustn't或needn't；② 而当must作推测意义“一定是；必定”讲时，反意疑问句则需根据must后的动词原形选用相应的形式。
eg. She must work hard at literature, mustn't she?
The kid must go to bed before 10pm，isn't he?