have当“有”字讲的几种疑问式和否定式

《诀窍英语》黄治森编写

“英语学得少，有的不知晓。若是被人问，一时就懵了。”

有很多学生，乃至有些老师不知道have当“有”讲的时候它有下列几种构成方法：（还有些家长辅导学生做题的时候一知半解。）

 1.添加 do  does did 来帮助（这时的have就用做了行为动词）

  I don't have a book.

  She doesn't have a book.

  He didn't have a book last year.

  Do you have a book？

  Does she have a book？

  Did he have a book last year？

2.将 have has had 直接搬到句首构成疑问句（这使得have兼做行为动词和实意动词。

 Have you a pen?

 Has she a pen?

 Had you a pen yesterday?

3. 用get（得到）的完成式， 即：have got, has got， had got.(这时得have has had就是时态助动词，无需添加 do does did)

 Have you got a pen?

 Has she got a pen?

 Had the boy got a pen before he came here?

I haven't got a pen.

She hasn't got a pen.

The boy hadn't got a pen before e came here.