"उसके पास पुस्तकें हैं।"
अनुवाद:He has books.
I have the books. You have the books. He has the books. She has the books. It has the books. We have the books . They have the books.
If u closely look at the sentence you will find that all the plural pronouns (i,we,they ) and i being the exception (because it is a singular pronoun)bears have.
I have You have We have They have
And all the singular pronouns(He,She,It) bears has
He has She has It has