英语肯定句有哪些

1、一般现在时： 一般疑问句：Dose she go to school by bike? 肯定句：She goes to school by bike. 否定句：She does not go to school by bike. 2、一般过去时： 一般疑问句：Did you finish your homework yesterday? 肯定句：I finished my homework yesterday. 否定句：I did not finish my homework yesterday. 3、一般将来时： 一般疑问句：Will/Are you going to go fishing tomorrow? 肯定句：I will/am going to go fishing tomorrow. 否定句：I won't/am not going to fishing tomorrow. 4、现在进行时： 一般疑问句：Is he playing computer game? 肯定句：He is playing computer game. 否定句：He isn't playing computer game. 5、现在完成时： 一般疑问句：Have you been to Beijing? 肯定句：I have been to Beijing three times. 否定句：I haven't been to Beijing. 6、过去进行时： 一般疑问句：Were you watching TV at 7:00a.m.yesterday? 肯定句：I was watching TV at 7:00a.m.yesterday. 否定句：I wasn't watching TV at 7:00a.m.yesterday. 7、过去完成时： 一般疑问句：Had you finished your homework when you watched the TV. 肯定句：I had already finished my homework when I watched the TV. 否定句：I hadn't finished my homework yet when I watched the TV. 8、过去将来时： 一般疑问句：I didn't know whether he would help me. 肯定句：He said he would help me. 否定句：He said he wouldn't help me.

一、肯定句的意思

对事物做出肯定判断的句子。

二、一般现在时的肯定句

1、She has no brother.

她没有兄弟。

2、Mary has a pen.

玛丽有一支笔。

3、Susan plays baseball very well.

苏珊棒球打得很好。

4、John sees some flowers.

约翰看到一些花。

5、John wants some magazines.

约翰想要一些杂志。

6、Today is Monday.

今天是星期一。

7、Lucy is at home now.

露茜现在在家。

8、He lives in Shanghai.

他住在上海。

9、I’m a student.

我是一个学生。

10、My hair is black.

我的头发是黑色的。

扩展资料

在英语中常可见到一些形式上否定而意义上则表肯定的句子：

1、cannot…too You cannot betoo careful.

释义：你越小心越好。

英语说的cannot…too，意为“就算再……也不过分”或“越……越好”,其中的can表示可能性，too有over之意，可以换用enough或sufficient等字样。同时，在not的位置换用其他的否定词，如hardly，scarcely等也是可以的。

2、It is a good horse that never stumbles.

释义：再好的马也有失蹄的时候。

这个句子属于“It beadjective noun that…”句型。该句型多出现在一些谚语中，在某些情况下，这种句型需要从反面解释。

一.肯定句：是指用肯定的语气来陈述的句子。

例：

This is my pen。

这是我的笔。

He works in a hospital。

他在医院工作。

There are four fans in our classroom。

我们教室里有四个风扇。

二.否定句：含有否定词或表示否定意义词的句子。

例：

This is not my pen。

这不是我的笔。

He does not (doesn’t) work in a hospital。

他不在医院工作。

There are not (aren’t) four fans in our classroom。

我们教室没有四个风扇。

三.肯定变否定，有以下2种情况

1.有am / is / are，就在它们后面加 not。

am → am not

is → is not

are → are not

比如：

I am  a girl。→ I am not a girl。

我是女孩。→我不是女孩。

2.没有 am / is /are, 但有表示动作的动词（比如eat），就在动词前加 don't 或 doesn't,  动词为原形。

V原→ don't + V原

V（-s, -es结尾） →  doesn't + V原

eat → don't eat

eats → doesn't eat

比如：

I drink  cola。→I don't drink cola。

我喝可乐。→我不喝可乐。

She drinks cola。→ She doesn't drink cola。

她喝可乐。→她不喝可乐。

扩展资料

一.否定句主要是在肯定句的基础上加上了否定词 “not”。

二.有动词be的句子则“not”加在be后面，可缩写成“isn’t，aren’t”，但am not 一般都分开写。

三.没有动词be的句子则要先在主要动词的前面加上一个助动词（do，does，did），然后在它后面加上“not”，你也可以把它们缩写在一起如“don’t , doesn’t , didn’t ）。

四.上面三个助动词要根据人称和时态来选择，其中“does”只用于一般现在时主语是第三人称单数的情况，而“did”只用于一般过去时，不论主语是什么人称和数，都用“did” 。

一.肯定句变成否定句 如果句中有be动词is,am,are 或情态动词must,can等,在其后面直接加not, she is your mother. she isn't your mother 2.如果没有be动词或情态动词,加don't,does't或did't she likes playing football. she doesn't like playing football.二.肯定句变成疑问句 变成一般疑问句如果有be或情态动词动词就把他们提前, she is your mother. Is she your mother? 2.如果没有就在前面加do的某种形式,第三人称用does,过去时用did she likes playing football. Does she like playing football? 变成特殊疑问句, 要具体分析,看是对什么进行提问,简单来说, 1.对人提问用who, she is your sister.Who is your sister? 2.对事物用what, The book is on the desk. what it is on the desk? 3对时间用when, She will come back tomorrow. When she will come back? 4.对频率用how often等等 I play football everyday. How often does you play footall?