know加to do something还是doing something?

题目

know加to do something还是doing something?
还有,think加do something,to do something还是doing somethings?

答案

know 加how to do可以,没见过直接加to do sth.或doing sth
一般是直接加名词
know 作 “见到过；听到过”[一般用于过去时或完成时]：但不是固定know+to do sth 固定句型
I've never known him to cry.
我从未见过他哭泣.
think 作谓语,一般也是加宾语或从句
作“料想；猜想；相信”意,可以像下面那样翻译,但不是think + to do sth 的固定句型
I didn't think to see my boss in the party.
我没想到会在聚会上见到我的老板.