haven't meaning in English
haven't ＝ have not.
Examples
- Haven't i seen you hanging about ?
我看见总在这儿闲逛的人那不是你吗？ - So why haven't they come here already ?
那么他们为什么到现在还不来呢？ - But you haven't talked to my husband .
不过，你还没有跟我先生讲过话呐。 - You haven't been doing too much homework .
你根本没有做多少功课。 - Why, we haven't begun to fight yet .
啊，我们根本还没开始交手呢。