英語單詞have和has得用法如下：

has得用法

當主語是第三人稱單數(he,she,it)，名詞單數，這時謂語動詞就要用has.

例句：1）He has a cat. 他有一只貓。(he是第三人稱單數)

2) The house has four doors. 這棟房子有四扇門（the house名詞單 數）

2. have得用法

當主語是第壹人稱(I,we)，第二人稱(you)，第三人稱復數(they),名詞復數，這時謂語動詞用have.

例句：1）I have a story book. 我有一本故事書。（I 是第壹人稱）

2) These houses have 20 doors.這些房子有20扇門（these houses名 詞復數）

3. 陳述句有has 和 have 變否定句

1）當has 和 have 是有得意思：直接在has 和 have 后面加not

例句：She has a white cat.

She has not a white cat. (只接在has后加not)

2) 當has 和 have 是其它意思，如 吃，拿，得到，等等，has 和 have是一個萬事都有可能 動詞，在不同得語境翻譯出不同得意思。變否定句時，在has前加 doesn't, 把 has變為have; 在have 前加don't.

例句：a) He has breakfast every day.

He doesn't have breakfast every day. (把has變為have,前加doesn't)

b) I have breakfast every day.

I don't have breakfast every day. (在have前加don't)

4. 陳述句有has 和 have 變一般疑問句

1) 當has和have是有得意思，直接把has,have移到句首

例句：She has a sports car.

Has she a sport car?（直接把has移到句首）

2) 當has和have 是“吃，拿”等意思時，動詞是has時，句首加does,然后把has變 為have; 動詞是have時，直接在句首加do.

例句：a) She has breakfast every day.

Does she have breakfast every day?(句首加does,把has 變為have）

b) They have breakfast every day.

Do they have breakfast evey day?(直接在句首加do)