have的否定形式为haven't。have可作动词和助动词，基本含义有“占有”、“由…组成”、“显示出”、“带有……性质特征”、“持有”、“有”，与过去分词连用构成完成时。
have的基本含义与用法介绍
have作为动词，意为有;持有;占有;由…组成;显示出，带有(性质、特征)。常与过去分词连用构成完成时。例句有：
1、He had a new car and a boat.
他有一辆新车和一条船。
2、I don't have that much money on me.
我身上没带那么多钱。
3、In 1999 the party had 10 000 members.
这个党在1999年时拥有1万名党员。
4、The ham had a smoky flavour.
这火腿散发着一种烟熏的香味。
5、Surely she didn't have the nerve to say that to him?
她一定没有胆量跟他这样说吧？
6、Do you have a client named Peters?
你们有一位名叫彼得斯的客户吗？
7、We have no choice in the matter.
我们在这件事上别无选择。
8、We have a duty to care for the refugees.
我们有义务关怀这些难民。
9、I've got a lot of homework tonight.
我今晚有很多家庭作业要做。
10、He had his head in his hands.
他双手抱着脑袋。
