动词的ing形式。在have a good/hard/difficult time doing sth结构中，have为动态动词，动作未结束就要用进行体，其意义为：to experience something，直译为汉语则为：在做某事的时候经历了一段美好/艰难的时光。
have a good time造句
1、I hope you'll have a good time.
2、We'll have a good time here.
3、Shaoshan today you have a good time?
4、Unexpectedly, I didn't have a good time on the Mountain.
5、You will have a good time in Jingzhou.
6、They talk, eat and have a good time.
7、"You could have a good time," Polack agreed.
8、"Well, have a good time, daughter," observed her father.
9、Sanlitun Bar Street is a good choice. You will have a good time there.
10、Did you have a good time ? Yes, we had a wonderful time.