-tree bbbee be-er bebel beber beebe beele beene beete beeut belee belen belet bellb belle belue belur belut bene- benet benne bennu benue benun benur benut berbe berel beren beret berle berne bernt berre berru berte berun betee betel beten beter betle betne betre bett- bette betul beuer beule beure beute bleen bleer bleet blent blere blete bleue bluer bluet blunt blurb blure blurr blurt brebu breel breen breer breet brell brene brenn brent brere brett breu- brrrr bruen bruer bruet brule brull brune brunn brunt brute bruun btr-t bubbe buben buber buble buell bulb- bulen bull- bulle bulul bulun bulut bunne bunte bunun bunut burel buren buret burle burn- burne burnt burru burte burtt burun burut buten buter butle butte butut e-ten ebber ebbet ebble ebell ebene eberl ebern ebert eblul ebner ebull ebure eeeee eeler eener eenet eeten elben eleet elele elene eleut ellel ellen eller ellet ellul elren elten elulu eluru elute enbun enent enete enlen ennet enrut entel enten enter entre enure enurn erbbe erben erber ereen erere erlen ernen ernet ernle errtu erte ertel erter ertun etern etete etnre etree etrun ettel etten etter ettle eturu euell eulen euler eunet eurel eurre lebel leben leber lebet leell leere leert leleu lelle lenne lente leren lerer lerne letbe leten letre lette letur lubbe luber luble lubne lubun lubur lueen luen lulle lulte lulul lunel lunet lunne luren lurer lurne lurue lurun lute- luter lutte nbtel nebel neber nebet neble neblu nebtu neele neelu neere neetu nelle nellu nente neree neret nerre nerte nerul nerur neten netle netne nette neuen neuer neueu neune neur- neure neurl nlnet nnebe ntete ntlet nu-nu nubel nuble nuell nulle nunet nunun nure- nurlu nurun nutte rebbe rebel reber rebet rebun rebut reene reere relee relet relte relue renee rener renet renne rente rere- reree reret rerun retee retel reter retnr rette reuel reuen reuer reuet reule reune reute rtenn rubee rubel ruben ruber ruble ruele ruell ruere ruete rueun ruler runer runet runne runte ruten ruter rutle rutte rutul ruule ruutu t-nut tbtbt tbutt teber tebet teele teell tele- telen teler teleu tell- telle tenel tenen tener tenet teneu tenlb tenne tennu tente tenue tenur teret tereu terne terre tert- tetel teten teter tetle tetr- tette tlell tlett tllbr tllnn tntnt treen treer treet trele trene trent trere trete trett treut trubu truel truer trule trull trute ttnet ttttt tuber tubul tuell tuelt tuene tulet tulle tulun tune- tunel tuner tunne turbe turbt turel turen turet turle turn- turne turnt turnu turre turtu turul turut tutee tutel tutle tutte tutun tuuru ubble ubeen uber- uelen ulene ulent ullet ullur ulten ultre ululu uluru unbet unete unlet unnet unnun unnur unnut unrun unten unter unurn urelu urent urtel urter urtlu urubu urutu utenn uter- utter uttur utube uturn uturu uunet uuuuu