teke tel- tele tell telt telu ter- tere terk terr teru tete tetr tett tetu teuk teut tevl tre- tree trek tret treu trev trte trtr trub true truk trut truu trvl ttbb tter tttt ttul tubb tube tubr tubu tuel tuer tuet tuke tule tulk tull tulu turb ture turk turr turt turu tute tutl tutt tutu tvel tver tvrr tvtv ubbe ubek uber ubet uble uele uell ukek ukeu uktv ukur uleb ulee ulek ulle ullr ultt uluk ulul urbe ure- uret urke urle urre urte uruk urur urut urve utel uter uttu uulu uuuu uv-b uvel uver uvvu veel veer veet veke vel- vele vell velt velu ver- verb vere verk verl vert vete vetr veur veve vlvt vrbl vret vruk vtvl vuel vuku vull vult vurb vurt vutv vver vvvv

-tree b-r-k bbbee be-er bebek bebel beber beebe beeke beele beete beeut beeve beker bekke belee belek belet bellb belle belue belur belut berbe berek berel beret berk- berke berle berre berru berte betee betel beter betke betle betre bett- bette betul beuer beule beure beute beuve bevel bever bevke bevue bleek bleer bleet bleke blekk blere blete bleue bleve bluer bluet bluke blurb blure blurr blurt brebu breek breel breer breet breke brell brere brett breu- breve brrrr bruer bruet bruke brule brull brute btr-t bubbe buber buble buell buker buket bukk- bulb- bulke bull- bulle bulul bulut burek burel buret burke burle burru burte burtt buruk burut buter butke butle butte butut ebber ebbet ebble ebell eberl ebert eblul ebull ebure eeeee eeler eevee eever ekker ekuku ekuru eleet elele eleut eleve ellek ellel eller ellet ellul eltek elulu eluru elute elver elvet erbbe erber erere ereve erkel errtu erte ertel erter eruke eteke etete etree etrek ettel etter ettle eturu euell euler eurel eurre evell evere everr evert evete evett eveve evtek k-t-b k-tel k-ute kebbe kebek keber keble keele keere keeve kelek kelle kerek kerel keret kerle kerre kertu kerve ketek ketel keter kette kevel kever kleet klerk klett kleve kluke klute kreek kreel kreke krele krell krete kreuk krull kubek kuber kubul kukel kukle kukur kullu kulte kulul kulur kurbu kurek kurku kurlu kurre kurte kuruk kutlu kutte kuttu kutur kvell lebel leber lebet leeke leell leere leert leeve lekel lekeu leleu lelle lerer letbe letek letre lette letur leuk- leuke levee level lever levet levre lubbe luber lubke luble lubur lueve luker luket lukre lukut lulle lulte lulul lurer lurue lurve lute- lutek luter lutke lutte luver rebbe rebel reber rebet rebut reere reeve rekel rekke rekle relee relek relet relte relue rere- reree reret retee retel reter rette reuel reuer reuet reule reute revel rever revet revle revue rt-rk rtrev rubee rubel ruber rubke ruble ruele ruell ruere ruete rukel rukke ruler ruter rutle rutte rutul ruule ruutu tbtbt tbutt teber tebet tebuk teele teell tekel teket tekke tele- telek teler teleu tell- telle teluk telve terek teret tereu terre tert- terve tetel teter tetle tetr- tette tevel tevet tkkev tlell tlett tllbr trbuk treer treet trele trere trete trett treut treve trubu truel truer truke trule trull trute trutv ttttt tubek tuber tubul tuell tuelt tukul tukur tulet tulku tulle turbe turbt turek turel turet turku turle turre turtu turul turut turve tutee tutel tutku tutle tutte tuuru tvtel ubble uber- ukeke ukert ulker ullet ullur ultre ululu uluru ulver urelu urkel urker urkut urtel urter urtlu urubu urutu uter- utter uttur utube uturu uuuuu uvele uvule veber vebre veele veell veere veeve vekke vekre velet velev velle veluk velur vereb verek verel verke verre verte vertu verul verve vetel vetle vette vetuk veuve vever vreel vuele vuere vukel vulv- vulve vuver

b-reel b-tree bbbbbb beblur beebee beeker beeler beeter beetle beever bekele bekker belbek belber belett beleve belker beller bellet belleu bellue beltek beltel belter beltre belull belute belver belvue berbee berber bereel bereet bereke berere berkel berker berkut berrer berret bertel bertre berube betell betelu betere betete betrue bettee bettel better bettle betutu beurre bevele bleere bleket blublu bluett blurre bluter brebel breere brekke brette breuer brever brevet brubru bruel bruker bruket brulee bruree brutel bubber bubble bubele bububu bueler buellt bukett bukkur bukler bukuru bulbel bulbul bulker bull-e bullee buller bullet bultel bulter burbet burble burbur burell burket burkut burler burlet burree burrel burrer burret burtle buruku burutu butere butler buttel butter buttle ebbert eberle eburru eebree eeuler ekuele elbert eleele elekte ellett erbree erketu errett ettutu eubule euller eutere everte k-tree kebber kebele keeble keeker keekle keeler keelut keever kekkut kekule kelbke kelebe kelkel kellee keller kelter kerbel kerber kereru kerker kerkuk kertee kervel kerver ketler ketter kettle ketuke keuruu kleber kleeer kleket klever klub-u kluver krekel kreker kretek kubeer kubler kukere kuklev kullur kulter kultuk kultur kululu kurell kurkul kurree kururu kutke kutter kuttle kuuele lebbek lebert lebret leelee leerer leetle leevre lekker lerret letter lettre levere levert levett levubu llueve lubber lukulu luller lurker lurulu lutter luttre r-tree re-let rebble rebell rebtel rebuke rebulb rebute reeker reeler reeuel reever rekrut releke releve reller relleu rereel rerule reteer reteet retell retere retree retret rettel retter rettur retube returu reubke reuele reuere reuler reulle reuter reutte reuver revell reverb revere revert revver rubbee rubbel rubber rubble rubell rublev rubutu ruelle rukkle rukutu ruller rurkee rurutu ruttee rutter ruttle rutube ruvell t-tree t-tube teebee teetee teeter teevee tekrur telele telete teleut tellee teller tellur telvue terete terkel terrel terrer terret terter tertre teruel tervel tetele tetete tetter teutul tevell tevere trbble trebek trebel treble trebur treete treker tretee trette tretuk trevet truble truett truker trulle tubber tubble tubul- tubule tuelle tuktuk tuluvu turbel turbet turble turkel turker turkle turlet turrel turret turtle turtuk turtur tururu turver tutele tuteur tutter tuttle tuttul tuttut tuvvur tvtube u-tube ureltu ureter urette urkulu utelle uteute utukku utukur uuvere v-belt vebret veebel veeker veerer veleru veller vellet vellur velter velure velvel velvet verlet verree verrel verrer verret verrue vertel vertre vertue veruel verule vervel verver vervet vetere vetter vrubel vuelve