brennisteinssýranafnorð kvenkynBeygingeintalaán greinismeð greininf.brennisteinssýrabrennisteinssýranþf.brennisteinssýrubrennisteinssýrunaþgf.brennisteinssýrubrennisteinssýrunnief.brennisteinssýrubrennisteinssýrunnarnf.þf.þgf.ef.