Hallborgarson
nafnorð karlkyn Móðurnafn
Fallbeygingar
Eintala
nefnifall
Hallborgarson
þolfall
Hallborgarson
þágufall
Hallborgarsyni
eignarfall
Hallborgarsonar
Fleirtala
nefnifall
Hallborgarsynir
þolfall
Hallborgarsyni
þágufall
Hallborgarsonum
eignarfall
Hallborgarsona