如题所述
省略了介词in，应该是have a hard time in doing 没时间做什么事情。
hard
英 [hɑːd] 美 [hɑːrd]
adj.坚固的；坚硬的；结实的；难做的；难懂的；难以回答的；困苦的；艰苦的；艰难的。
adv.努力地；费力地；艰难地；猛力地；猛烈地；彻底认真地。
I have a hard time paying attention in school.
在课堂上，我很难集中精神。
相关短语：
1、hard bargain 大肆讨价还价
2、hard customer 挑剔的顾客
3、hard face 难看的脸
4、hard heart 铁石心肠
温馨提示：答案为网友推荐，仅供参考
第1个回答 2016-07-27
have a hard time doing == have a hard time in doing -----你的结构省略了 in 这个介词。从语法角度说，have a hard time 是主语和谓语关系，in doing sth做状语，强调“在--- 的时候”。
例句：She had a hard / difficult time (in) working out a solution to her problem.
同样，They have a good / lovely time (in) chatting with their favourite film star.
也要记住以下结构：enjoy oneself (in) doing sth
have fun (in) doing sth
就这么多了。记住吧。 很有用的。本回答被网友采纳
例句：She had a hard / difficult time (in) working out a solution to her problem.
同样，They have a good / lovely time (in) chatting with their favourite film star.
也要记住以下结构：enjoy oneself (in) doing sth
have fun (in) doing sth
就这么多了。记住吧。 很有用的。本回答被网友采纳
第2个回答 2016-07-27
v-ing结构作后置定语
做.....很艰难
做.....很艰难
第3个回答 2016-07-27
Have a hard time (in) doing sth.
