做某事困难的英语三个

1. It's difficult to do something.

（形式主语结构，直接描述客观难度）

例句: It's difficult to learn a new language.

2. Have trouble (in) doing something.

（动词短语，强调过程中遇到困难，"in"可省略）

例句: She had trouble solving the math problem.

3. Find it hard/challenging to do something.

（"find + it + 形容词" 结构，侧重主观感受）

例句: He finds it challenging to focus in noisy environments.

其他补充表达：

例句: They struggled to finish the project on time.

例句: It's a struggle to wake up early in winter.

根据具体语境和想强调的侧重点（客观难度/主观感受/过程艰辛）选择合适表达即可。