αυτος is usually the third person, personal pronoun.
Singular |
|||
Masculine |
Feminine |
Neuter |
|
Nominative |
αυτος |
αυτη |
αυτο |
Genitive |
αυτου |
αυτης |
αυτου |
Dative |
αυτω |
αυτη |
αυτω |
Accusative |
αυτον |
αυτην |
αυτο |
Plural |
|||
Masculine |
Feminine |
Neuter |
|
Nominative |
αυτοι |
αυται |
αυτα |
Genitive |
αυτων |
αυτων |
αυτων |
Dative |
αυτοις |
αυταις |
αυτοις |
Accusative |
αυτους |
αυτας |
αυτα |
It has two other functions as well (BBG 12.7):
When αυτος is in the nominative case and agrees with a noun, then it is an intensive pronoun.
αὐτὸς ὁ ἀνήρ or ὁ ἀνὴρ αὐτός = the man himself
ἀνδρός αὐτοῦ = of the man himself
When αυτος is preceded by the article in any case:
ὁ αὐτός ἀνήρ = the same man
τοῦ αὐτοῦ ἀνδρός = of the same man