we are having fun watching TV
I had fun watching the dog chasing after the cat.

have fun doing sth造句：
1）Bob will have fun looking for them.
Bob将很乐意找寻他们 。
2）Wish you have fun learning English this term.
希望你这个学期愉快的学习英语。
3）You will have fun learning English this term.
你会在这学期找到学习英语的乐趣 。
4）You will have fun reading about the world we live in.
你会通过阅读了解我们生活中的世界。
5)Most kids have fun creating lanterns or playing games liwww.souquanme.comke guessing the lantern riddles .
大多数的孩子会很乐意做灯笼，猜灯谜等。

have fun doing sth造句：
1）Bob will have fun looking for them.
Bob将很乐意找寻他们 。
2）Wish you have fun learning English this term.
希望你这个学期愉快的学习英语。
3）You will have fun learning English this term.
你会在这学期搜趣网找到学习www.souquanme.com英语的乐趣 。
4）You will have fun reading about the world we live in.
你会通过阅读了解我们生活中的世界。
5)Most kids have fun creating lanterns or playing games like g搜趣网uessing the lantern riddles .
大多数的孩子会很乐意做灯笼，猜灯谜等。

have fun doing sth. 开心地做某事== enjoy oneself doing sth=have a good time doing sth
如：1.The kids are having fun playing in the park now.孩子们正在公园里开心地玩
2.we have fun playing football in the afternoon.我们今天下午踢足球很开心