Guðmunduson
nafnorð karlkyn Móðurnafn
Fallbeygingar
Eintala
nefnifall
Guðmunduson
þolfall
Guðmunduson
þágufall
Guðmundusyni
eignarfall
Guðmundusonar
Fleirtala
nefnifall
Guðmundusynir
þolfall
Guðmundusyni
þágufall
Guðmundusonum
eignarfall
Guðmundusona