A personal pronoun is a short word we use as a simple substitute for the proper name of a person. Each of the English personal pronouns shows us the grammatical person, gender, number, and case of the noun it replaces. I, you, he, she, it, we they, me, him, her, us, and them are all personal pronouns.

We have both subject pronouns and object pronouns:

Subject                      Object
I                                   me
you                             you
he                               him
she                             her
it                                 it
we                             us
you                           you
they                         them