"have a hard time doing"和"have hard time to do"有区别吗?

"have a hard time doing"和"have hard time to do"有区别吗? have a good time 和have a hard time后接to do ,doing? have a hard time doing 还是have hard time doing have hard time to do? 有没有have a good time doing sth和have a hard time with sb have a hard time doing sth 请问have a good/hard/difficult time to do 还是doing have a hard time 后接to do sth 还是doing 也是急用 have a hard time have a difficult time 区别 have a very hard time have a hard time造句 have a hard time doing sth. 是什么意思啊?