当think, believe, suppose, imagine, expect等动词后接的宾语从句为含有not的否定句时，该否定应移至主句，即否定主句的谓语动词。例如：
I don't think it will rain tomorrow.
We don't expect our football team will win the World Cup.
I hope you weren't ill. (Unit 15 READING)
需要特别说明的是：涉及到转移的只是not，not以外的其它否定词，如no, never, hardly, few, little, seldom等，不必转移。例如：
I believe my brother has never been late for school.
We can imagine birds can hardly live without these woods.
think, believe, suppose, imagine, expect等动词后接宾语从句构成的主从复合句在构成反意疑问句时，视情况不同有两种不同的构成方式。
I expect our English teacher will be back this weekend, won't she/he?
We suppose you have finished the project, haven't you?
I don't believe that he can translate this book, can he?
We don't imagine the twins have arrived, have they?
此类句子的回答同"前否后肯"型反意疑问句一样，如上述后一个句子，若双胞胎已经到了，则回答为"Yes, they have.";若尚未到达，使用"No, they haven't."。
Your sister supposes she needs no help, doesn't she?
You thought they could have completed the project, didn't you?
They don't believe she's an engineer, do they?
She doesn't expect that we are coming so soon, does she?
1. - Are you able to come to our party tomorrow?
-I think so. What time? (so= I am able to come to your party tomorrow)
2. -Is my car ready?
-I believe not. (I don't believe so.)
这里的not = it is not ready;so = it is ready。
3. -Is Peter coming to the concert?
-I expect so/not.
需要说明的是，在think, imagine, believe三词的否定答语中，用don't think/imagine/believe so比用not更为常见。hope则只能使用not，不能使用don't hope so。例如：
4. -Will it rain the day after tomorrow?
-I hope so. / I hope not. (不能说： I don't hope so.)