have trouble doing sth.我只知道介词后动词得加ING.变动名词.这里doing是什么原因变动名词

have trouble doing sth have trouble doing sth sb have trouble (in) doing have trouble in doing have difficult in doing have problem in doing这三个固定搭配中trouble difficulty problem用加s 为什么这三个固定搭配中trouble difficulty problem用加s吗 为什么 have trouble ding sth 和have trouble with doing 区别 have problems/trouble doing sth 中problem为什么要加s have difficulty in doing sth .have trouble in doing sth have trouble doing 还是 to do? 用have trouble doing sth造句 have trouble doing sth和have trouble in doing有什么区别 have problems doing sth与 have trouble doing sthhave problems doing sth .have trouble doing sth.都是对的吗?trouble是可数的吧,怎么不是 troubles? have trouble with sth和have trouble (in)doing sth区别?@_@~have trouble with sth和have trouble (in)doing sth区别? have trouble in doing sthin可不可以省略呀! have trouble 【in】doing sth?in可以省略? 为什么i have trouble doing 宾补是doing 不可以用to do 而且这doing是宾补吗? “有一点困难做某事”是have little trouble in doing还是have a little trouble in doing run into trouble 和have trouble with 和have trouble doing sth和have difficulty in doing这四个一样的意思吗 分别用他们造句 做某事有困难have a trouble to do sth.还是have a trouble in doing sth还是 have trouble in doing 表示