From Wiktionary, the free dictionary
αυτών • (aftón ) ( demonstrative )
genitive masculine / feminine / neuter plural of αυτός ( aftós )
αυτών • (aftón ) (strong personal pronoun )
genitive masculine / feminine / neuter plural of αυτός ( aftós , “ their ” )
Third person pronouns
plural (formal)
strong
weak
masculine
feminine
neuter
masculine
feminine
neuter
nominative
αυτοί ( aftoí )
αυτές ( aftés )
αυτά ( aftá )
τοι ( toi )
τες ( tes )
τα ( ta )
genitive
αυτών ( aftón )
αυτών ( aftón )
αυτών ( aftón )
τους ( tous ) †
τους ( tous ) †
τους ( tous ) †
accusative
αυτούς ( aftoús )
αυτές ( aftés )
αυτά ( aftá )
τους ( tous )
τις , τες ( tis, tes ) ‡
τα ( ta )
There is no 3rd person vocative case.† These terms double as possessive pronouns .‡ τις ( tis ) is used before a verb, τες ( tes ) after a verb.. All personal pronoun forms are displayed at εγώ ( egó , “ I ” ) .