Question

I want to know when to use  'has', 'have' and 'had'.

Answer 1

You use "HAS" in 3rd person.

e.g.: She has a dog

        He has brown eyes

       The doy (it) has a ball

"HAVE" with the other personal pronouns

e.g.: I have a dog

        We have an English book

        You have long, black hair

"HAD" you use in past

e.g.: She had a dog when she was a child

        We had English class yesterday morning

        He had short hair at school

        You had an interesting book, but you lost it.

"HAD" is the past of "HAVE" and "HAS" and you use with all personal pronouns.