Like nouns, the Personal Pronouns have number, gender and case. The gender of the first and second person is obvious, as they represent the person or persons speaking and those who are addressed. The personal pronouns are thus declined:

First Person.
M. or F.

Sing.Plural.
N.IWe
P.MineOurs
O.MeUs

Second Person.
M. or F.

Sing.Plural.
N.ThouYou
P.ThineYours
O.TheeYou

Third Person.
M.

Sing.Plural.
N.HeThey
P.HisTheirs
O.HimThem

Third Person.
F.

Sing.Plural.
N.SheThey
P.HersTheirs
O.HerThem

Third Person.
Neuter.