否定并不是考研英语中高频的考点，但是却是难点之一。否定的错误理解，导致了整个句子的错误翻译，是非常常见的。

　　实用英语语法英语中的否定句  

　　1) 一般否定句

　　I don’t know this. No news is good news. There is no person /not a person/not any person in the house。

　　2)特指否定

　　He went to his office, not to see him. I am sorry for not coming on time. I don’t think/believe/suppose/feel/imagine you are right。

　　3)部分否定

　　I don’t know all of them. I can’t see everybody/everything. All the answers are not right。(并非所有答案都对。) All is not gold that glitters. (闪光的不一定都是金子。) Both of them are not right。(并非两人都对。)