A personal pronoun (Personalpronomen) is a pronoun that is used to substitute a person or thing whose identity is already clear – usually because they have been mentioned before.
In English, these pronouns are I, You, He, She, It, We, You and They.
For example if you take the sentence: “My father is playing football.”, you could substitute “my father” with the personal pronoun “he” and the sentence would become: “He is playing football.”
The same can be done in German as well. Here, the personal pronouns or Personalpronomen are Ich, Du, Er, Sie, Es, Wir, Ihr and Sie.
Accordingly, the sentence: “Mein Vater spielt Fußball.“, would become: “Er spielt Fußball.”