Both verb have and has mean possession, but they have different in use. The use of have and has must follow the subject-verb agreement. The word "have" follows the first person, second person and third person plural, meanwhile, the word "has" follows the third person singular only.

Usage Examples:

I have two brothers

You have a pet

She has a nice hobby

He has a beautiful sister

It has smooth fur

We have a same dream

They have exciting hobbies