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式。

相关介绍

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。

It doesn't seem that they know where to go.

看来他们不知道往哪去。