see sb. doing sth 看到某人正在做某事,无需从头看到尾,强调正在做
i see Linda cleaning the classroom 我看到linda正在打扫
see sb. do sth 看到某人做过某事,强调做过某事,而且看完了整个过程
i saw Linda clean the classroom yesterday. 我昨天看到她打扫
see sb. doing sth 看到某人正在做某事,无需从头看到尾,强调正在做
i see Linda cleaning the classroom 我看到linda正在打扫
see sb. do sth 看到某人做过某事,强调做过某事,而且看完了整个过程
i saw Linda clean the classroom yesterday. 我昨天看到她打扫