1、一般现在时 （与人称有关）

I go to school. Lucy goes to school.

I don't go to school. I doesn't go to school.

Do you go to school? Does Lucy go to school?

2、现在进行时 （与人称有关）

I am going to school. Lucy is going to school.

I am not going to school. Lucy is not going to school.

Are you going to school? Is Lucy going to school?

3、一般将来时（与人称无关）

I will go to school. Lucy will go to school.

I will not go to school. Lucy will not go to school.

Will you go to school? Will Lucy go to school?

4、情态动词  （与人称无关）

I must go to school. Lucy must go to school.

I can not go to school. Lucy can not go to school.

Can you go to school? Can Lucy go to school?