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肯定句变否定句的例子
肯定句变否定句20个例子英语如下：
1、I think she is there.
否：I don't think she is there.
2、He can sing this song and that one.
否：He cannot sing this song or that one.
3、Tom went to school too.
否：Tom didn't go to school either.
4、He has had supper already.
否：He hasn't had supper yet.
5、He had a good rest just now.
否：He didn't have a good rest just now.
6、Let's do it.
否：Don't let's do it.或Let's not do it.
7、He always gets there on time.
否：He never gets there on time.
肯定句变否定句方法：
1、be动词的否定式。
be 动词根据不同的人称和时态有不同的形式，在一般现在时中是am , is , are可用作联系动词，构成否定式时，一律在其后面加否定词not.
He is reading.——He is not reading. They are from China. ——They are not from China.
2、情态动词的否定式。
情态动词的否定式是在其后面直接加not. 如：
I can swim. ——I can't swim. He can dance. —— He can't dance. You should go to school at seven. ——You shouldn't go to school at seven.
3、实义动词的否定句。
实义动词变否定句时，要借助助动词do , does，在一般现在时中用do或者does其句子结构为：主语+ don't / doesn't+动词原形+其它 。
肯定句变否定句的例子
肯定句变否定句20个例子英语：
1、肯定句：She is going to China next month.
否定句：She isn't going to China next month.
2、肯定句：There were some ducks and chickens on the farm too.
否定句：There weren't any ducks or chickens on the farm either.
3、肯定句：I am a teacher.
否定句：I am not a teacher.
4、肯定句：I can play the pianno well.
否定句：I cannot play the pianno well.
5、肯定句：His family will fly to Beijing.
否定句：His family won't fly to Beijing.
6、肯定句：The little boy should go to bed early.
否定句：The little boy shouldn't go to bed early.
7、肯定句：The students often sing songs after school.
否定句：The students don't often sing songs after school.
8、肯定句：The boys runs fast.
否定句：The boys doesn't run fast.
9、肯定句：The king showed his new clothes to us.
否定句：The king didn't show his new clothes to us.
10、肯定句：l am a student.
否定句：l am not a student.
11、肯定句：He is here.
否定句：He isn't here.
12、肯定句：They are going to go fishing this week.
否定句：They are not going to go fishing this week.
13、肯定句：They are working hard.
否定句：They are not working hard.
14、肯定句：She was a teacher.
否定句：She wasn't a teacher.
15、肯定句：They were very happy.
否定句：They weren't very happy.
16、肯定句：We can dance very well.
否定句：We can not dance very well.
17、肯定句：Tom has something to tell his teacher.
否定句：Tom doesn't have something to tell his teacher.
18、肯定句：My mother does some washing every morning.
否定句：My mother doesn't do some washing every morning.
19、肯定句：Alice likes singing and dancing.
否定句：Alice doesn't like singing and dancing.
20、肯定句：We visited the old man yesterday.
否定句：We didn't visite the old man yesterday.
英语否定句的句子有哪些
英语语法中否定句分为九种:
(1)一般否定句
I don't know this.否定句式
No news is good news. 否定词no
There is no person smoking here.
(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.
否定句的例子
一般否定句：I don't know this. No news is good news.特指否定：He went to his office, not to see him. I am sorry for not coming on time.部分否定 ：否定词加表示全体的词：I don't know all of them.
否定句例子
（1）一般否定句
I don't know this. No news is good news.
There is no person（smoking）/not a person/not any person（smoking）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.
否定句改变方法
表示某一否定意思。句中一定有not。
有三种可能:be动词(am、is、are、was、were)+not、情态动词(can、must、should)+not、助动词(do、does、did)+not
1.看句中有无be动词，如有,直接在be动词后+not。
2.看句中有无情态动词，如有,直接在情态动词后+not
3.如上述二者都没有,就应用助动词+not
分四个步骤:
(1)肯定陈述句中本来是没有助动词的,要加上去,位置在主语(某人或某物)后,动词前。
(2)确定助动词用do、does还是did,根据句中动词,动词是原形的助动词就用do,动词是第三人称单数的助动词就用does,动词用过去式的助动词就有did。
(3)在助动词后加not。
(4)原句中动词假如发生变化就要恢复成原形。
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