see sb.do/doing的区别 如果是经常性的话用什么 请举一例子,
3个回答

see sb do sth 经常看见某人做某事(已经成为一种习惯)

I often see him play football after school .我经常看见他放学后踢足球.

see sb doing sth (偶然)看见某人做某事

I see him playing football this afternoon .我今天下午看到他踢足球.(他偶尔踢足球,被我看到了或者我偶然看到他踢足球)