As the direct object of a verb.
Can you hear me?
Myself; as a reflexive direct object of a verb.
As the object of a preposition.
Come with me.
As the indirect object of a verb.
He gave me this.
Myself; as a reflexive indirect object of a verb; the ethical dative.
As the complement of the copula (be or is).
It wasn't me.
(with and) As the subject of a verb.
Me and my friends played a game.
(not with and) As the subject of a verb.