一、什么是否定句
否定句是指表示否定的句子，必须有否定词，古代汉语中否定词可以是副词中的不、弗、勿、未、否、非，也可以是动词中的无
英语中的否定句分为一般否定句、特指否定句、部分否定句、全体否定句、延续否定句、半否定句、双重否定句、排除否定句和加强否定句。
英语中否定句的形式与用法分为动词的否定转移和谓语的否定转移两种。
二、什么是英语否定句
就是表否定意义的句子。分两个大类：第一，有be动词is、am、are和情态动词must、may、can的其后带有直接带not是否定。第二，没有这些词就是谓语前面加上do
not的具体形式。
三、否定句是什么意思？
否定句的意思：表示否定的句子。否定句必须有否定词。
古代汉语中否定词可以是副词“不”、“弗”、“毋”、“勿”、“未”、“否”、“非”，可以是动词如“无”。
否定句举例：
1、我认为它不会帮助我们。
2、我认为他不对。
3、我想他不喜欢它。
肯定句改否定句：加否定词，保证句子意思和原句意思相反，句意通顺。
1、肯定句：他喜欢读书。
2、否定句：他不喜欢读书。
扩展资料：
否定句分类：
1、一般否定句
即含有“不、没有、完全不是，完全不”等否定意思的词的句子。
Nothing is wrong with me.
2、双重否定句
含有两个否定词的句子，例如：含有“没有.....不......”“,非.....不可......”等词语的句子
如：每天下午，我非做作业不可.
双重否定句表示肯定。
参考资料来源：百度百科-否定句
四、什么是否定句(英语)？
表示否定的句子.必须有否定词,古代汉语中否定词可以是副词“不”、“弗”、“毋”、“勿”、“未”、“否”、“非”,可以是动词如“无”.
英语语法中否定句分为九种：
（1）一般否定句
I don't know this. No news is good news.
There is no person (smoke)/not a person/not any person (smoke) 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
All the answers are not right
All is not gold that glitters
I don't know all of them.
I can't see everybody/everything.
Both of them are not right.
（4)全体否定
None of my friends smoke.
I can see nothing/nobody.
Neither of them is right.
Nothing can be so simple as this.
（5) 延续否定
You didn't see him, neither/nor did I.
You don't know, I don't know either.
He doesn't know English, let alone/to say nothing of/not to speak of (更不用说） French.
（6) 半否定句
We seldom/hardly/scarcely/barely hear such fine singing.
I know little English. I saw few people.
（7) 双重否定
You can't make something out of nothing.
What's done cannot be undone.
There is no sweet without sweat.
No gain without pains.
I can't help /keep/ laughing whenever I hear it.
No man is so old but (that) he can learn.
（8)排除否定
Everyone is ready except you.
He did nothing but play.
But for your help, I couldn't do it.
（9)加强否定
I won't do it at all.
I can't see it any more.
He is no longer a boy.
