Sigbertsson
nafnorð karlkyn Föðurnafn
Fallbeygingar
Eintala
nefnifall
Sigbertsson
þolfall
Sigbertsson
þágufall
Sigbertssyni
eignarfall
Sigbertssonar
Fleirtala
nefnifall
Sigbertssynir
þolfall
Sigbertssyni
þágufall
Sigbertssonum
eignarfall
Sigbertssona