I do not do housework on Saturday.

我周六不做家务。

Because he did not do well at school.

因为他在学校表现不好。

Do not do to others what you do not want others to do to you.

己所不欲，勿施于人。

Some people think that young people do not do enough sport.

有些人认为年轻人运动不够。

He did not do it on purpose.

他并不是故意的。

An honest man usually does not do bad things.

老实人通常不会做坏事。

Do not do to others as you do not wish to be done to you.

己所不欲，勿施于人。

Students do not do their homework because of complicated family lives.

由于家庭生活复杂，学生们不做家庭作业。

Do not do what you're not authorized to do.

不要做那些你无权做的事。

I do not do overseas?

我不做海外的？