have第三人稱(chēng)單數(shù)怎么寫(xiě)

has是have的第三人稱(chēng)單數(shù)形式。have作動(dòng)詞有“持有；占有；由……組成；顯示出，帶有(性質(zhì)、特征)”的意思，作助動(dòng)詞與過(guò)去分詞連用構(gòu)成完成時(shí)。另外have的現(xiàn)在分詞是having，過(guò)去式是had，過(guò)去分詞是had。

have的基本用法

一、have作實(shí)意動(dòng)詞

1.表示“有”的意思。

I have an English book.

He has two ping-pong bats.

2.have和一些其他名詞連用，表示：

(1)一種活動(dòng)。

They’re going to have a volleyball match.(舉行比賽)

Are we going to have a meeting this week?(開(kāi)會(huì))

We are going to have a talk this afternoon.(談話)

(2)患病。

I have got a headache.

I have a bad cold.

(3)發(fā)生的情況。

I’ve had so many falls that I’m black and blue all over.

(4)生育。

The queen ant may have tens of thousands of babies in one summer.

3.和一個(gè)與動(dòng)詞同形的名詞連用，表示一個(gè)動(dòng)作(have+a+與動(dòng)詞同形的名詞)。

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“穿著”、“戴著”(=to be wearing)。

I noticed he had on bedroom slippers.

At the ball，Mary 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?

二、have與to一起構(gòu)成情態(tài)動(dòng)詞，表示“不得不”、“必須”。

I have to be back by ten o’clock.

I have to look after her at home.

Do you have to look after her at home?

三、have作助動(dòng)詞與動(dòng)詞的過(guò)去分詞一起構(gòu)成現(xiàn)在完成時(shí)和過(guò)去完成時(shí)。

Great changes have taken place the last two years.

Have great changes taken place the last two years?