>What important thing have you learned from your parents?

I learned selfish is not good.
>I have learned that being selfish is not good.

Selfish is same for stealing .
>Being selfish is same with stealing.

If I selfish I am bad person.
> If I will be selfish, I will be bad person. 

Thank you for making your homework, Kelly. You can see there my corrections. Don't forget to take note of these and study, okay?
See you in our class and take care always. ^^

~Teacher Cassie