Question

quando devemos usar has ou have?

Answer 1

utiliza-se o has na terceira pessoa dos pronomes pessoais. He, She, It/ Ex: He has, She has, It has

O have vc utiliza no: I, You, we, they/ ex: I have, You have, we have, They have.

espero ter ajudado

Answer 2

o has usa para falar que uma pessoa tem algo
exemplo :
she has a book
he has a hat

e so usa no he she it

o have usa no you we they e I
you have it
they have many balls
we have a problem