you're wasting your time trying to persuade him 中用to try 代替trying行吗
问题描述：
you're wasting your time trying to persuade him 中用to try 代替trying行吗
答
你好.不可以.记住以下结构：
spend time (in) doing sth
waste time (in) doing sth
注意到介词in了吗? 介词後面的动词是动名词.只不过in在这里可以省略,但语法结构不变.