Question

have difficulty to do还是doing？

Answer 1

have difficulty (in) doing sth 做某事有困难。

have difficulty in doing sth结构中，difficulty通常用单数形式，介词in有时可以省略，构成have difficulty doing sth固定结构。如：

I had difficulty carrying out the plan. 

我执行这项计划有困难。

difficulty

读音：英［ˈdɪfɪkəlti]美［ˈdɪfɪkəlti]

释义：n.困难；难题；难事；困境；艰难；费劲；辛苦；困难程度；难度；

例句：They showed great perseverance in the face of difficulty.

他们面对困难表现了坚强的毅力。

其他：复数difficulties