heyforkur
nafnorð karlkyn
Beyging
eintalafleirtala
án greinismeð greinián greinismeð greini
nf.heyforkurheyforkurinnnf.heyforkarheyforkarnir
þf.heyforkheyforkinnþf.heyforkaheyforkana
þgf.heyforki / heyforkheyforkinum / heyforknumþgf.heyforkumheyforkunum
ef.heyforksheyforksinsef.heyforkaheyforkanna