b-r-k bbbee be-er bebek beber beebe beeke beez begee begge begue begur beker bekke berbe bereg berek berge berk- berke berre berru berze beuer beure bezer brebu breek breer breg- brege bregg breke brere breu- breze brrrr bruer bruge brugg bruke bruzz brzeg bubbe buber buger bugge bugre buker bukk- burek burge burgk burgu burke burru buruk buzek buzuk buzzr ebber eberg ebure eeeee egger egrek ekker ekuku ekuru erbbe erber erege erere eruke eurre gbeke gberg gberu geber gebke gebre gebur gebze geere geeze gegge gerbe gerke gerre gerze gezer grebe greek greer grege gregg grgur grrrr grubb grube grure gruze gubbe guber gubru guere gueze gurge gurke gurre gurur k-gee kebbe kebek keber keere kerek kergu kerre kreek kreke kreuk kreuz kruge kubek kuber kugur kukur kurbu kurek kurku kurre kuruk kurze kuzbu rebbe rebeg reber reege reere reeze reger regge regur rekke rere- reree rerez reuer reuze rezek rubee ruber rubke ruegg ruere ruger rugge rukke uber- ubrez ugrug ukeke ukuug urger urker urubu uuuuu uzbeg uzbek uzere zberg zbure zebre zebub zegge zerbe zereg zerre zu-zu zubek zuber zubuk zuker zurek zurge zzzzz