have a difficult time to do sth.还是have a difficult time doing sth.

问题描述:

have a difficult time to do sth.还是have a difficult time doing sth.

一般这两种都不用,可以说it is a difficult time to do sth./doing sth.

have a hard time of doing
你说的也都可以,但是difficult满正规的,
你的两个说法完全正确,取决于你说话的情况
用不同的时态而已

have a difficult time doing sth.有困难做某事