显形否定-错位否定
It doesn't seem to be logical. 这似乎不合逻辑。

I don't think you are right.我认为你不对。

He didn't go there by bus. 他不是乘公共汽车去的。

I don't teach because teaching is easy for me. 我之所以教书，并不是因为教书容易。

In no circumstances should we be conceited.我们绝不应该骄傲自满。

但有些否定词的位置不同，含义也不同。

I haven't decided to go there. 我没决定去不去那儿。

I have decided not to go there.我已决定不去那儿。

这类词还有 advise，tell，ask，require，request，pretend 等。