-tree bbbee be-er bebel beber beebe beele beete beeut belee belem belep belet bellb belle belue belum belur belut bembe bemer bemet beppe beppu berbe berel beret berle berme berre berru berte berum betee betel beter betle betre bett- bette betul beuer beule beure beute bleep bleer bleet blere blerp blete bleue bluer bluet blume blurb blure blurr blurt bmp-r brebu breel breem breer breet brell breme bremm brere brett breu- brmmm brrrr bruer bruet brule brull brume brumm brute btr-t bubbe buber buble buell bulb- bull- bulle bulul bulut bumbu bumme bumpe burel buret burle burru burte burtt burut buter butle butme butte butut ebber ebbet ebble ebell eberl ebert eblul ebull ebure eeeee eeler eepee eleet elele eleme eleut ellel eller ellet ellul elmer elmet elpee elper elulu eluru elute embee embel ember emble embue emeer emele emell emere emerl emert emmer emmet empee empel empte emtee emtel emule emure eppml epptb epure erbbe erber erem- erept erere erpel errtu erte ertel erter erump erupt etete etree ettel etter ettle eturu euell euler eum-u eumel eurel eurre lebel leber lebet leell leeme leere leert lelep leleu lelle lemel lemer lemme lemur lepel leper lepet leppe lepre lept- lerer lerum letbe letem letme letre lette letup letur leupp lmule lubbe luber luble lubur lulle lulte lulul lumb- lumbe lumer lumet lumle lumme lumut luper luppe lupul lurer lurue lurup lute- luter lutte lutum m-tel mbebe mbere mbret mbube mbule mbulu mburu mebbe meble meele meell meemu meere meete melbu melee melem melet mell- melle melte melub melur melut membe memel memer merel merer meret merle merre merte merul merur metel meter metle metr- metre mette metup metur meuer meule meure meute mlete mmmmm mpret mreru mrlee mrmet mt-lb mt-te mt-tm mt-tp mt-tr mt-tt mtepe mtree mttle mtume muble muler mulet mulle mult- multe mulur mumbe mumle mumlu mumme mummu muppu muret mureu murle murre murru murum murup murut muter mutet mutlu mutum p-rep pebre peebu peele peell peere peerl peert peete pelee peler pelet pelle pembe pepee pepel peple peppe pept- pepup perel perer peret perle perre perte perur petbe peter petr- petre petru pette petur peule peure plebe pleep pleet plete pleut plumb plume plump plumr plupp plut- plute preem prell prelp preme premp prepl prete prute pter- ptere ptprb ptpre ptprm ptprr ptprt ptpru puber puble puett puler pull- pulle pullu pulme pulut pumel pumpe pupet puple puppe puree purel purer purle purre purte purul purum puter putre putt- putte puttu putup re-up rebbe rebel reber rebet rebut reeme reepe reere relee relet relte relue remee remel remer remet remue repel repet reple reppe reprt repub reput rere- reree reret rerum retee retel retem reter rette reuel reuer reuet reule reume reute rmutt rubee rubel ruber ruble rubup ruele ruell ruere ruete ruler rumbe rumer rummu rumpt rupee rupel ruper ruter rutle rutte rutul ruule ruutu tbtbt tbutt teber tebet teele teell teeme teemu teepe teeup tele- telem telep teler teleu tell- telle tembe tembu temel tempe tempt tepee tepet tepeu teppu terem teret tereu terme terre tert- tetel teter tetle tetr- tette tlell tlett tllbr tlmer tpler treer treet trele treme tremp trepp trept trere trete trett treut trpml trubu truel truer trule trull trume trump trupt trute ttttt tuber tubul tuell tuelt tulem tulet tulle tulum tumbe tumbu tumul tumut tupee tuple turbe turbt turel turem turet turle turre turtu turul turup turut tutee tutel tutle tutte tuuru u-pml ubble uber- ubume ullet ullur ulmer ulmet ulpur ulrum ultre ululu uluru umbe- umbel umber umble umblu umbre umeer umeme umlet umple upeet upmet upper upput upter urelu ureme urtel urter urtlu urubu urupe urutu uter- utmer utrum utter uttur utube uturu uuuuu