b-r-k bbbee be-er bebek bebel beber beebe beeke beele beene beken beker bekke belee belek belen bellb belle belue belur bene- benke benne bennu benue benuk benun benur berbe berek berel beren berk- berke berle berne berre berru berun beuer beule beure bleek bleen bleer bleke blekk blenk blere bleue bluer bluke blunk blurb blure blurr brebu breek breel breen breer breke brell brene brenk brenn brere breu- brrrr bruen bruer bruke brule brull brune brunk brunn bruun bubbe buben buber buble buell buker bukk- buknu bulb- bulen bulke bull- bulle bulul bulun bunke bunne bunuk bunun burek burel buren burke burle burn- burne burru buruk burun ebber ebble ebell ebene eberl ebern eblul ebner ebull ebure eeeee eeler eener ekene ekker ekren ekuku ekuru elben elele elene elken ellek ellel ellen eller ellul elren elulu eluru enbun enker enku enlen enure enurn erbbe erben erber ereen erere erkel erlen ernen ernle eruke euell eulen euler eurel eurre kebbe kebek keben keber keble keele keene keere kelek kelen kelle kelun kenel kenku kenne kerek kerel keren kerle kerne kernu kerre klene klenk klerk kluke klunk kneel kneen knele knell knurl knurr kreek kreel kreke krele krell krenn kreuk krnel krull krunk kruun kubek kuben kuber kubul kukel kukle kukur kulen kullu kulne kulul kulun kulur kunek kunen kuner kunku kunne kunur kurbu kurek kuren kurku kurlu kurne kurre kuruk lebel leben leber leeke leell leere lekel lekeu leleu lelle lenek lenne leren lerer lerne leuk- leuke lubbe luber lubke luble lubne lubun lubur lueen luen luken luker lukre lulle lulul lunel lunne luren lurer lurne lurue lurun nebek nebel neber neble neblu neele neelu neere neker nelle nellu neree nerre nerul nerur neuen neuer neueu neune neur- neure neurl nkubu nnebe nu-nu nubel nuble nuell nuker nulle nunun nure- nurek nurlu nuruk nurun rebbe rebel reber rebun reene reere rekel reken rekke rekle rekne rekun relee relek relue renee rener renke renku renne rere- reree rerun reuel reuen reuer reule reune rubee rubel ruben ruber rubke ruble ruele ruell ruere rueun rukel ruken rukke ruler runer runne ruule ubble ubeen uber- ueken uelen ukeke ulene ulken ulker ullur ululu uluru unkel unken unker unkle unkur unnun unnur unrun unurn urelu urkel urker urkun urubu uuuuu