"wait for sb to do sth"还是"wait for sb doing sth"我好象都见过,是不是都可以啊

问题描述:

"wait for sb to do sth"还是"wait for sb doing sth"
我好象都见过,是不是都可以啊

The former is right,I think...

我只见过前面的

前边的我见过
后边的不敢苟同