动词be有许多意思和用法。大致意思是：可以，动词be有成为的意思。让我们告诉你关于英语里的be动词的所有用法.的事情，让我们看看吧！
英语里的be动词的所有用法：
一、be 动词做系动词
1、系动词+表语”的结构
当be 动词做系动词使用时，主要构成“系动词+表语”的结构，在句子中做谓语。表语可以是名词、形容词、副词、介词短语等。例如：
The man is a science teacher.
Mary's new dresses are colourful.
Mother is in the kitchen now.
I have been there before.
They shall be here at 10:00 tommorow.
That can't be true.
You are not being very polite.
Your brother is being very annoying this evening
2、be 动词的一般疑问句，方法是把be 移到主语前面，也可说成是移到句首。
Is the man a science teacher? Yes, he is. / No, he isn't.
Are Mary's new dresses colourful? Yes, they are. / No, they aren't.
Was mother in the kitchen then? Yes, she was. / No, she wasn't.
Were you at home the day before yesterday? Yes, I was. / No, I wasn't.
Was she late this morning? Yes, she was. / No, she wasn't.
3、be 动词用在特殊疑问句
在特殊疑问句里，be 动词仍然移到主语前面，但特殊疑问句是以特殊疑问词开头的，所以be 动词只能说是移到主语前面，或者说是在特殊疑问词的后面。例如：
Whose bike is broken? Xiao Ming's bike is.
Who was singing in the room? Mr. Zhang was.
Where are you from? I am from Wuhu.
What class were you in? We were in Class 2.
How old is Tom? He is ten.
4、be 动词的否定句
be 动词做谓语时，它的否定形式是在be 后加not，并且可以缩写。例如：
It is not sunny today.
Tom and his friends are not in the park.
You were not nine years old when I went to the university.
He was not often late for his class when he was a student.
I wasn't here yesterday.
My parents weren't at home last Sunday.
5、be 动词的祈使句
be 动词的祈使句有肯定和否定两种形式。肯定形式是以be 动词开头，而否定形式或强调句形，要加don't 或do。例如：
Be careful!
Be a good boy!
Don't be silly!
Don't be a fool!
Do be obedient!
Do be careful.
二、be 动词做助动词
助动词be 有两个基本用法，一是与谓语动词一起构成各种时态，二是构成被动语态。
“be + 现在分词组”成各种进行式时态。例如：
Tony's maid is washing his new car.
The children are playing in the field.
Samuel was eating when I came in.
We have been living here since 1959.
This time next day they will be sitting in the cinema.
三、注意事项
英语句子中，为了表达时态或被动语态的需要，常常会出现几个助动词连在一块儿使用。也就是说，助动词be会和其它助动词一起使用。这时候，整个句子的一般疑问句和否定句，就不一定是对be 进行变化了，而是以第一个助动词为主进行变化。即哪个助动词在先，就以它为主进行变化。例如：
[肯定句] All the wonderful birds can be found in our Bird Park. (助动词有两个：can be )
[疑问句] Can all the wonderful birds be found in our Bird Park? (移第一个can)
[否定句] All the wonderful birds can not be found in our Bird Park. (在第一个can 后加not)
[肯定句] I have been there before. (两个助动词：have， been )
[疑问句] Have you been there before?
[否定句] I have not been there before.
[肯定句] I shall be having my supper at six tomorrow evening. (两个助动词：shall， be )
[疑问句] Will you be having my supper at six tomorrow evening?
[否定句] I shall not be having my supper at six tomorrow evening.
四、助动词be，无词义，辅助主要动词一起在句中作谓语动词。用法如下：
1. be+doing：构成进行时态，有现在和过去两种进行时态。如：
The girls is reading and copying the new words now.
Young Tom was always asking questions and trying out new ideas.
2. be+going to do，表示“打算或将要做某事”，be有现在和过去两种形式。如：
We are going to plant trees in the park.
I didn’t know if she was going to come here.
3. be+to do，表示“按计划安排将要做某事”。如：
The new shop is not to be opened till next Monday. One night an angel came to
Mary and told her that she was to have this special boy.
五、there be
there be句式为：there be+主语部分+状语部分，表示“某处存在某物”，be常用现在时，过去时和将来时等。如：
Oh, cool! And there are many things to see. There is even a deer park in Sanya.
There are about 80 pyramids in Egypt.
Will there be a football match in your school next week?
六、实义be
可以将be视为实义动词，因为它具有实际的词义，如“成为;做;发生;举行;逗留;到达”等。如：His daughter wants to be a doctor for animals in her twenties.Kates birthday party
will be at half past six this evening.Jim has been in China for
morethan two years, but he has not yet been to Yichang.
be动词的过去时用法：
1. be动词过去时的构成
肯定句：主语 + be动词的过去式(was/were)…
否定句：主语 + be动词的过去式(was/were) + not…
疑问句：be动词的过去式(Was/Were) + 主语…?
疑问代词/疑问副词 + was/were + 主词…?
2. be动词过去时的肯定句
句型：主语 + was/were…
be动词过去时由“主语 + be动词的过去式(was/were) + 表语”构成：
I was here yesterday.昨天我在这里。
We were hungry.我们当时饿了。
The concert was last night.音乐会在昨晚举行。
The biggest problem was that we didn't have enough time.最大的问题是我们当时没有足够的时间。
There were some students on the campus.校园里有一些学生。
3. be动词过去时的否定句
句型：主语 + was/were + not…
be动词过去时的否定句结构是在be动词过去式was/were后面加上not。否定式的was not，were not大多使用缩写形式wasn't(读作/′w znt/)和weren't(读作/w nt/)：
I was not here yesterday.昨天我不在这里。
He wasn't busy the other day.前几天他不忙。
There weren't any students in the classroom.教室里一个学生也没有。
4. be动词过去时的一般疑问句
句型：Was/Were + 主语…?
回答方式：Yes，主语 + was/were…
No，主语 + wasn't/weren't…
be动词过去时的一般疑问句结构是将be动词过去式was/were置于主语之前(大写was/were的第一个字母)，在句尾加问号;这种语序是主语和谓语倒装语序：
Were you here yesterday? —Yes，I was.你昨天在这里吗? ——是，我在。
Was there any water in the river then? —Yes，there was./No，there wasn't.那时那条河里有过水吗? ——是的，有过。/不，没有。
Were your parents pleased to hear about your new job? —Yes，they were./No，they weren't.你父母听说你有了新工作后，他们高兴吗? ——是。/不是。
5. be动词过去时的特殊疑问句
句型：疑问代词(主语)/疑问限定词的名词词组(主语) + was/were…?
疑问代词/疑问副词 + was/were + 主语…?
就主语提问时，将疑问代词或带有疑问限定词的名词词组置于be动词过去式was/were之前(was/were的第一个字母无需大写)，和一般疑问句差不多，在句尾加问号;这种语序是陈述句语序。就表语提问时，则以一个疑问代词或疑问副词开头，之后是“be动词过去式was/were + 主语”，在句尾加问号;这种语序是主语和谓语倒装语序：
Who was here yesterday? —I was here yesterday.昨天谁在这里? ——昨天我在这里。(就主语提问)
How many people were present at the meeting? 参加会议的有多少人? (就主语提问)
How was your trip to London? 你伦敦之行过得怎样? (就表语提问)
What was the weather like yesterday? —Yesterday it rained all day.昨天天气怎样? —昨天下了一天雨。(疑问代词what就表语提问)
Where were you yesterday afternoon? —I was at home all after-noon.你昨天下午在哪儿? ——整个下午我都在家。(疑问副词where就表语提问)
be动词的一般现在时用法：
1. be动词句型的构成
肯定句：主语 + be动词(am/is/are)…
否定句：主语 + be动词(am/is/are) + not…
疑问句：be动词(am/is/are) + 主语…?
疑问代词/疑问副词 + be动词(am/is/are) + 主语…?
2. be动词的肯定句
句型：主语 + be动词…
be动词的肯定句由“主语 + be动词(am/is/are) + 表语”构成：
I am a doctor.我是一名医生。
Mary is at work.玛丽在工作。
He is very brilliant.他非常聪明。
It is a nice day.今天天气晴朗。
You are my only friend.你是我惟一的朋友。
They are students.他们是学生。
3. be动词的否定句
句型：主语 + be动词(am/is/are) + not…
be动词一般现在时的否定句结构，是在be动词am，is，are之后加not：
We aren't her classmates.我们不是她的同班同学。
I'm not Tom.我不是汤姆。(I'm是I am的缩写，读作/aim/。)
It's not a cat，but a dog.这不是猫，而是狗。
Things are not always what they seem(to be).事物并不总是与表象一致。
be动词否定句的缩写方式：
is not的缩写是isn't，读作/′iznt/;are not的缩写是aren't，读作/a：nt/;I am～的否定句是I am not～，缩写为I'm not～;am not不缩写在一起。
4.be动词的一般疑问句
句型：be动词 + 主语…?
回答方式：Yes，主语 + be动词(am/is/are)…
No，主语 + be动词(am/is/are) + not…
be动词的一般疑问句是将be动词置于主语之前(大写am/is/are的第一个字母)，在句尾加问号;这种语序是主语和谓语倒装语序：
肯定句：They are fruit.它们是水果。
疑问句：Are they fruit? 它们是水果吗? (主语和谓语倒装)
肯定句：The book is on the table.书在桌子上。(主语和谓语倒装)
疑问句：Is the book on the table? 书是在桌子上吗?
回答由be动词构成的疑问句时，肯定要用Yes，否定用No：
Are you John's brother? —Yes，I am.你是约翰的兄弟吗? ——是的，我是。
Are Mary and John still at school? —No，they are not.玛丽和约翰仍在学校吗? ——不，不在了。
Are you there? 喂，你听着吗? (打电话时用)
【注意】 Yes或No的后面一定要加逗号，其后的主语小写，I(我)除外。I永远大写。在回答句子时，主语必须是代词。
5. be动词的特殊疑问句
句型：疑问代词(主语) + be动词(am/is/are)…?
疑问代词/疑问副词 + be动词(am/is/are) + 主语…?
用who和how等疑问代词或疑问副词与be动词构成的疑问句称为特殊疑问句。就主语提问时，如果主语是疑问代词或是带有疑问限定词的名词词组，如What number is…? (什么数字是……? )，Which boy likes…? (哪个男孩喜欢……? )，Whose car is…? (谁的车是……? )等，将疑问代词或带有疑问限定词的名词词组置于be动词之前(am，is，are的第一个字母无需大写)，在句尾加问号;这种语序是陈述句语序。就表语提问时，则以一个疑问代词或疑问副词开头，之后是“be动词 + 主语…”(am，is，are的第一个字母无需大写)，在句尾加问号;这种语序是主语和谓语倒装语序。be动词的特殊疑问句不能用Yes或No来回答：
who“谁”：
Who is there? 谁在那里? (就主语提问)
Who is she? —She is my mother.她是谁? ——她是我母亲。(就表语提问)
Who are they? —They are John’s classmates.他们是谁? ——他们是约翰的同学。
what(指某一或某种未知的事物或人)“什么”：
What are these? —These are books.这些是什么? ——这些是书。
What are they? —They are sailors.他们是干什么的? ——他们是海员。
What is Susan like? 苏珊是什么样的人? /苏珊的人品如何? (就介词宾语提问)
whose“谁的”：
Whose house is this? —The house is Jane's.这是谁的房子? ——是简的房子。
Whose are these shoes? —They are Tom's.这些是谁的鞋子? ——是汤姆的鞋子。
which“哪一个、哪一些”：
Which of these books is yours? 这些书中哪一本是你的?
Which is heavier，iron or copper? 铁和铜，哪一个更重?
where“在哪里”：
Where is he? —He's upstairs/at home/in the office.他在哪里? ——他在楼上/在家里/在办公室。
Where are John and Tom? —They are at school.约翰和汤姆在哪里? ——他们在学校。
how“怎样、如何”：
How is Helen? —She is very well，thank you.海伦好吗? ——她很好，谢谢您。
How old is your son now? —He is fifteen.你儿子多大年纪了? ——他15岁了。
How is the weather today? —The weather is nice today.今天天气怎样? ——今天天气很好。
be动词现在进行时用法：
构成:主语+be+动词ing〔现在分词〕形式
第一人称+am+v-ing
第二人称+are+v-ing
第三人称+is+v-ing
定义：现在进行时表示现在或当前一般时间正在进行的动作。可以表示有计划的未来。也是一般现在时表将来。
现在进行时的基本用法：
a. 表示现在( 指说话人说话时) 正在发生的事情。 We are waiting for you.
b. 习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。
Mr. Green is writing another novel. (说话时并未在写，只处于写作的状态。) She is learning piano under Mr. Smith.
c.已经确定或安排好的将来活动
I'm leaving for a trek in Nepal next week.(已经安排了)
we're flying to Paris tomorrow.(票已经拿到了)
d.有些动词(状态动词不用于进行时态)
1.表示知道或了解的动词:believe,doubt,forget,imagine,know, remember,realize,suppose,understand
2.表示“看起来”“看上去"appear,resemble,seem
3表示喜爱或不喜爱hate,like.lover.prefer
4表示构成或来源的动词 be come from.contain,include
5表示感官的动词 hear see smell sound taste
6表示拥有的动词belong to.need.own .possess.want wish