一个英语问题see sb doing sth 那I saw him ( ) the violin这个空里该填什么呢?回答

我还是分不清楚see sb do sth see sb doing sthi saw him __on the bus see sb doing sth/to do sth I saw a girl -------(play)the vio 英语有关see的语法 I saw sb do sth i see sb do sth 什么区别 When I went to see him,I saw him the violin. 英语问题：see sb doing sth的被动用法 关于英语方面的问题.hear sb do sth /hear sb doing sth see sb do sth /s see sb.doing sth. 英语like to see sb doing sth 英语有没有i see sb do sth和i see sb doing sth这两种语法?如果没有该怎样变化 用I see sb do sth 和I see sb doing sth造句.各两个 关于英语语法.saw sb doing sth 和 see sb to do sth有什么区别?不一样都是看过某人做过某 see sb.doing sth.变成被动语态怎么变呢?