have的用法很多，具体如下：
一、have作实意动词
1、表示“有”的意思。
Look,I have wings,just like you.
2、have和一些其他名词连用
(1)一种活动。
We have no classes on Sunday.（上课）
they’re going to have a volleyball match.（举行比赛）
(2)患病。
I have got a headache.
I have a bad cold.
(3)发生的情况。
I've had so many falls that I'm black and blue all over.（跌跤）(JBⅣL10)
(4)生育。
The queen ant may have tens of thousands of babies in one summer.
3、和一与动词同形的名词连用，表示一个动作（have＋a＋由动词转化和名词）。
Are you going to have a swim.
I have a long talk with the teacher.
4、have on sth.或have sth. on，表示“穿着”、“戴着”(=to be wearing)。
I noticed he had on bedroom slippers.
At the ball Motile had a diamond necklace on.
5、表示“吃”、“喝”。
I wanted to have a cup of tea and some eggs.
Does she have lunch at home?
6、组成复合结构即“have＋宾语＋宾语补足语”。
(1)不加to的动词不定式作宾语补足语(have sb. do sth.)，表示让、叫某人做某事。
The soldier had him stand with his back to his father.
(2)现在分词作宾语补足语(have sb.(sth.)doing)，表示让（使）某人做某事。
…the two men had their lights burning all night long….
(3)过去分词作宾语补足语(have sb. (sth.)done)，表示：
①使（让，请）别人作某事，表示的动作是别人做的。
Emperor Qin Shi Huang had all the walls joined up.
…he should have new clothes made of this splendid cloth for the coming great procession.
②遭遇到某事。
Houses near airports sometimes have their windows broken.
Workers in some industries have their hearing harmed by the noise of the machine.
二、have与to一起构成情态动词，表示“不得不”、“必须”，可用于各种时态。
I have to look after her at home.
三、have做助动词与动词的过去分词一起构成现在完成时
和过去完成时。
Great changes have taken place the last two years.
They said that the Arab had stolen their camel.
四、have用于“情态动词＋have＋过去分词”的结构，有 推测、假设之意。
1、must＋have＋过去分词，表示对过去时间发生的动作或存在的情况的推测，一般用于肯定句。
Her father thought that she must have met a fairy.
You must have left your bag in the theatre.
2、can(could)＋have＋过去分词，表示对过去发生事情的“不肯定”，常用于否定句和疑问句。
He can't have been to your home,he doesn't know your address.
3、should＋have＋过去分词，表示“某事本该早做而实际未做”，用于肯定句。
You should have been here five minutes ago.
五、have用于某些成语，表示固定的意思。
1、have a word(a few words)with sb.，表示和某人说一（几）句话。
Where's Peter? I want to have a word with him.
2、had better＋不带to的动词不定式，表示“…最好…”。
I'd better go and look for him now.
3、have nothing(something)to do with，表示“和…无（有）”关系。
Most of questions had nothing to do with Edison's lessons.
