Question

为什么是原型?he saw two thieves rush out of a shop and run towards

Answer 1

see sb doing sth 和see sb do sth是固定搭配,没有跟过去式搭配的用法

see sb doing sth 是强调看见某人正在做某事,着重动作过程, 而see sb do sth 是看见某人做某事,着重于看见这件事的发生.

如：I saw him drawing by the river then.

我见他那时正在河边画画．

I saw him draw by the river sometimes

我看见他有时在河边画画．