b-r-k bbbee be-er bebek bebel beber beebe beeke beele begee begge begle begue begur beker bekke belee beleg belek belge bellb belle belue belur berbe bereg berek berel berge berk- berke berle berre berru beuer beule beure bleek bleer bleke blekk blere bleue bluer bluke blurb blure blurr brebu breek breel breer breg- brege bregg breke brell brere breu- brrrr bruer bruge brugg bruke brule brull bubbe buber buble buell buger bugge bugle bugre buker bukk- bulb- bulge bulke bull- bulle bulul burek burel burge burgk burgu burke burle burru buruk ebber ebble ebell eberg eberl eblul ebull ebure eeeee eeler egger egrek ekker ekuku ekuru elegu elele elge elgee elger ellek ellel eller ellul elulu eluru erbbe erber erege erere erkel eruke euell euler eurel eurre gbeke gberg gberu gebel geber gebke gebre gebur geere gegge gelee geler gelle gelru gelug gerbe gerke gerle gerre ggulu glebe gleek gleer glegg gleke glele glere glubb gluek gluer grebe greek greer grege gregg grell grgur grrrl grrrr grubb grube gruel grure gubbe guber gubru guell guere gugel gugul gulek guler gulle gurge gurke gurle gurre gurur k-gee kebbe kebek keber keble keele keere kegel kelek kelle kerek kerel kergu kerle kerre klerk kluge kluke kreek kreel kreke krele krell kreuk kruge krull kubek kuber kubul kugel kugur kukel kukle kukur kullu kulul kulur kurbu kurek kurku kurlu kurre kuruk lebel leber leeke leell leere leger legge lekel lekeu leleu lelle lerer lerge leuge leuk- leuke llerg lubbe luber lubke luble lubur luger lugge lugre luker lukre lulle lulul lurer lurgg lurue rebbe rebeg rebel reber reege reere regel reger regge regle regul regur rekel rekke rekle relee relek relue rere- reree reuel reuer reule rubee rubel ruber rubke ruble ruegg ruele ruell ruere ruger rugge rukel rukke ruler ruule ubble uber- uggle ugluk ugrug ukeke ukuug ulger ulker ullur ululu uluru urelu urgel urger urkel urker urubu uuuuu