verbs + ing as a subject.

- eating vegetables is healthy.

-having a beautiful figure is a sacrifice.

-smiling will make you younger everyday.

-practicing sports will keep you in shape.

-studying more is going to help you improve your grades.

-talking with your mouth food is impolite.

-Not helping elderly to cross the street is a bad manner.

-Not giving your seat to a pregnant woman is not polite.

-sleeping enough will you calm mind.