haven't和don't have的用法最好能说的清楚些,有力举最好

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haven't和don't have的用法最好能说的清楚些,有力举最好
haven't和don't have的用法
最好能说的清楚些,有力举最好

haven't和don't have的用法最好能说的清楚些,有力举最好
1.haven't 说明have是【助动词】,所以这是现在完成时的用法,因为只有在现在完成时或者现在完成进行时态,have才是做助动词,比如:
I haven't been to Beijing since 2010. 从2010年开始我就没再去过北京.
2.don't have 说明have 是【实意动词】,表示“有..东西”.比如:
I don't have a pen. 我没有钢笔.

haven't 助动词无意义 i haven't seen the movie.
don't have 实义动词没有 i don't have a brother .