This is my pen this pen is mine it belongs to me
This is your pen this pen is yours it belongs to you
This is his pen this pen is his it belongs to him
This is her pen this pen is hers it belongs to her
This is its pen this pen is its it belongs to it
This is our pen this pen is ours it belongs to us
This is your pen this pen is yours it belongs to you
This is their pen this pen is theirs it belongs to them
possessive adjective possessive pronoun object pronoun