have 后加什么词性
当 have 作助动词时，其后用动词与其一起构成谓语。
have
v.有;持有;占有;由…组成;显示出，带有(性质、特征)；
aux.与过去分词连用构成完成时
The two groups of children have quite different characteristics.
这两组儿童具有截然不同的特点。
Now she won\'t have to go out to work any more.
现在她不必再出去工作了。
There have been many changes in recent years.
近几年发生了许多变化。
Call me if you have any problems regarding your work.
你如果还有什么工作方面的问题就给我打电话。