Sol Invictus wrote:I don't know on what it depends, but it's not gender. Vocative can have multiple variants, but in general most words have form which is equal to nominative (except for musculine nouns ending with -s or -is), so you can get by without knowing vocative
Kaa jaasauc kaada ar vaardu "Liiga"?
How are you supposed to call someone with the name "Liiga"?
Liiga!
vai
Liig!
vai
Liigu!