b-r-k bbbee be-er bebek beber beebe beeke begee begem begge begue begum begur beker bekke bembe bemer berbe bereg berek berge berk- berke berme berre berru berum beuer beure brebu breek breem breer breg- brege bregg breke breme bremm brere breu- brmmm brrrr bruer bruge brugg bruke brume brumm bubbe buber buger bugge bugre buker bukk- bumbu bumme burek burge burgk burgu burke burru buruk ebber eberg ebure eeeee egger egrek egrem ekker ekmek ekrem ekuku ekuru embee ember embue emeer emere emerg emerk emmer emure erbbe erber erege erem- erere eruke eum-u eurre gbeke gberg gberu geber gebke gebre gebur geere gegge gemer gemme gemre gerbe gerke germe gerre gerum grebe greek greer grege gregg greme grgur grrrr grubb grube grume grure gubbe guber gubru gueme guere gumbe gumer gummb gumme gurge gurke gurre gurum gurur k-gee k-mer kebbe kebek keber keere kekem kemer kemme kerek kerem kergu kerre kreek kreke kreme kreuk kruge krumm kubek kuber kugur kukur kumeu kumru kumuk kurbu kurek kurem kurku kurre kuruk mbebe mbege mbeku mbere mbube mburu mebbe meemu meere meger megre meker membe memer mereg merer merge merke merre merur meuer meure mmmmm mreru muger mugur muker mukke mukur mumbe mumme mummu mureu murre murru muruk murum rebbe rebeg reber reege reeme reere regem reger regge regme regur rekem rekke remee remer remue rere- reree rerum reuer reume rubee ruber rubke ruegg ruere ruger rugge rukke rumbe rumer rummu uber- ubume ugrug ukeke ukuug umbe- umber umbre umeer umeme ureme urger urker urubu uuuuu