将think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到 主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定形式。
I don't think I know you. 我想我并不认识你。
I don' t believe he will come. 我相信他不回来。
注意：若谓语动词为hope,宾语从句中的否定词不能转移。 I hope you weren't ill. 我想你没有生病吧。