have助動(dòng)詞用法
1、（加過(guò)去分詞，構(gòu)成完成時(shí)態(tài)）已經(jīng)；曾經(jīng)
have/has done現(xiàn)在完成時(shí)； had done過(guò)去完成時(shí)；will have done將來(lái)完成時(shí)；would have done過(guò)去將來(lái)完成時(shí)；have/has been doing現(xiàn)在完成進(jìn)行； had been doing過(guò)去完成進(jìn)行。
They haven't finished the job yet.
他們尚未完成該項(xiàng)工作。
2、（用于虛擬語(yǔ)氣，表示與過(guò)去事實(shí)相反的假設(shè)）（假如那時(shí)）……的話
She might have come if she hadn't been so busy.
當(dāng)時(shí)若不是那么忙，她是可能來(lái)的。
have動(dòng)詞用法
1、有，擁有
This coat has no pockets.
這件衣服沒(méi)有口袋。
注意：have “有，擁有”，其疑問(wèn)和否定形式有兩種，如：
Do you have a brother? No, I don’t have a brother.
2、懷有，持有
Many people have doubts about the new project.
許多人對(duì)這項(xiàng)新工程有懷疑。
3、體驗(yàn)；經(jīng)驗(yàn)；患
We had a wonderful time on the beach.
我們?cè)诤┥贤娴煤脴O了。
4、拿；得到，取得
We gave him a present, but he wouldn't have it.
我們給他一件禮物,但他不肯接受。