区分一下found doing和find to do

区分一下found doing和find to do find doing 和find to do 有什么区别? permit doing和permit to do 怎样区分? 英语语法区分like to do和like doing什么区别 be found to do和be found doing 有什么区别 be found+doing还是to do? found sb doing/do sth 到底怎么区分... 怎么区分谓语动词,to do doing done 和to be doing to be done to have do find it +adj+to do 和 find that 哪个是正确的?怎么区分? 是find difficult doing还是find difficult to do 接下来怎么做阿,find to do还是find doing find sb doing 和 find sb do 的区别