bbbee be-er beber beebe beene beffe befur bene- benfe benne bennu benue benun benur berbe beren berne berre berru berun beuer beure brebu breef breen breer brene brenn brere breu- brrrr bruen bruer bruff brune brunn bruun bubbe buben buber buffe bunne bunun buren burn- burne burru burun ebber ebene ebern ebner ebure eeeee eener efere effer efren efuru enbun enfer enfeu enuff enure enurn erbbe erben erber ereen erere ernen eurre febre feere fener feneu fenne feren ferr- ferre feuer freer frere freur fu-fu funen furen neber neere nefen nefer neffe nefre neree nerre nerur neuen neuer neueu neune neur- neure nnebe nu-nu nunun nure- nurun rebbe reber rebun reefe reene reere refen refer reffe refne renee rener renfe renne rere- reree rerun reuen reuer reune rubee ruben ruber ruere rueun ruffe runer runne ubeen uber- ufere unfun unfur unnun unnur unref unrun unurn urubu uuuuu