-tree bbbee be-er be-ro bebel beber beblo bebot beebe beeft beele beete beeut beffe befoe befol befor befur belbo belee belef belet belew bellb belle bello belot below belue belur belut belwe beofe beoff beote beour berbe berel beret berle berlo berob beroe berol beror berow berre berru berte berto berwe betee betel beter betle betoo betor betou betow betre bett- bette betto betul beuer beule beure beute bewer bewet bewte bleer bleet bleft blere blete bleue blewe bloef bloor blorb blore blort blote bloto blott bloue blout blow- blowe blowt bluer bluet bluff blufr bluft blurb blure blurr blurt bluto bo-bo bobet boble bobr bobre boeol boero boeuf boeur bofet boffo bolbe bolel boleo boler bolet boll- bolle bollo bollu bolow bolte bolto booer boole boore boort booru boowe borbo boree borel borer boret borle boro- boroo borot borou borow borre borro borul borut borwe botel botet botew botou botro botte bottu bouee bouel bouer bouet boul- boule boulo boult boure boute bouto bouwe bowel bower bowet bowle bowlt bowow bowre bowte bowto brebu breef breel breer breet brell brelo breo- brere breto brett breu- brewe brobo broer broft brole broll brolo brool broto broue brout browe brrrr bruer bruet bruff brule brull brute btr-t bubbe buber buble buell bufet buffe buffo bufle bulb- bull- bulle bulou bulow bulto bulul bulut buolt burel buret burle burol buroo burow burro burru burte burtt burut burwe buteo buter butle buto- butor butot butou butte butuo butut bwool ebber ebbet ebble ebell ebelo eberl ebert eblul eboue ebull ebure eeeee eeler ef-tu efere efetf effer effet eflow efore eftel efter efuru efutu elbot elbow eleet elele eleo- eleot eleut ellel eller ellet elloe ellul eloee eloff elole eloor elore eloro elote elout elrob eltro elubo elulu eluru elute elwro eofor eorre erbbe erber erere erewe eroor erore eroto errew errol error errtu erte ertel erter etete etoll etool etoro etour etree ettel etter ettle eturu etwee eubro euell euler eurel euro- eurre ewell ewert ewfte ewloe ewlow febel feble febre feele feeor feere fefor felet felle felte feltt feoff feole ferel feret ferle ferlo ferow ferr- ferre ferro ferte fetel feter feto- fetor fette feuer feule feute fewel fewer fewle fewte fleer fleet flere flero flert flete flett fleur fleww floor flore floro floru flote floto flour flout flowe fluff fluo- fluor flurb flure flurr flurt flute flwor folet folle follo folwe foole foore foote fore- forel foreo foret forow forro forte forto forur forwe fotte fotur fouee fouel fouet foule fourb foure fouro fower fowle fowte freel freer freet frere frett freur frobe froot frore frote frute fruto ft-lb ftlee ftrtt fu-fu fuero fulbe fulle fullf fullo furbo furel furo- furor futur lbowo lebel leber lebet lebow leell leeof leere leert leeuw lefeu leffe lefou leftb leful leleu lelle lerer lerot letbe letot letow letre lette letto letur leuro lewer lewre lewte lobbe lobbo lober loble lobo- lobor loewe lofer loffe lofou lofte loler lollo lolol loobu looer looft loore loote loowe lorel loreo lorer loret lorre lorut lotof lotor lotow lotru lotte lotto louer loule loure louro lower lowre lowte lubbe luber luble lubow lubur luebo lufre lufte lulle lulte lulul lurer lurue lute- luteo luter lutol lutow lutte lutto lwewo o-fer o-r-b obbet obele obert obete obole obolo oboow oboro obote oboue obout obowo obreb obrow oelet oerel oerle offer offew offof offre offto offwe oflow ofoto ofour oftel ofter oftwo oleo- olere olleo oller ollur olotu olour oltet oltre oo-er ooooo oowee orble orbot orell oreo- orere orero orfeo orfeu orfoe orfor orful orlet orlow orobe orobo oroer orolu orout orret orrow orter ortet ortoo ortwo orube oruro orutu orwoe otell otelo otere otero otole otolo ototo otour otter ottur otulu oture oubut ouert oullo ouoro oure- ourol outer outof outre outro outto ouwer owelu oweto owler owlet owre- owte- owtte rebbe rebel reber rebet rebol rebut reefe reeft reere reewe refel refer refet reffe reffo refut relee relet rello relot relte relue reowe rere- reree reret rerob rerow retee retel reter retew retow retro rette retto reuel reuer reuet reule reute reuwe rewel rewer rewet rewle rewll ro-ro robbe robbo rober roble robo- robor robot robrt robte robur roell roero roewe rofel roffe rofor roleo rolfe rolfo rolle rollo rooer roofe rooft roole roore roote rooue rorbu rorer roteb rotel roter rotfl rotle roto- rotol rotor rotot rotte rotto roubt rouer rouet roufe roule roull roure route routt rouwe rowel rower rowet rowfe rowff rowle rowlf rowof rowte rowto rowwe rubee rubel ruber ruble rubof rubor ruele ruell ruere ruete ruffe ruffo rufo- rufol ruler rullo ruter rutle rutte rutul ruule ruutu ruwer ruwet tbolt tbtbt tbutt teber tebet tebow teele teell tefe tele- teleo teler teleu tell- telle tello telo- telwe teolo teotl teret tereu teror terre terro tert- teruo tetel teter tetle tetr- tetro tette teuto tewel tewer tewet tewor tlell tlett tllbr to-be tobbe tobel tober tobet tobol tobor tobot tobou tobre toefl toeof toerr toeto toetw tofet toffo tofol tofor tofte tolbo toler tolet tolle tollo toloo tolor tolow tolu- toobe toole toolt toore torbe torel toreo toret torob torow torre torro torte torto tortu torue torul totel toter totle toto- totoe totoo totte totwo touel toule toull toure touro toute toweb towee towel tower towle towoo towre treer treet trefe treff trele trere trete trett treut trewe troee trofe troff troft troll trott troue troul trout trouw trowe trowl trubu truel truer truff trule trull truro trute truwe ttttt tuber tubo- tubof tubou tubul tuelf tuell tuelt tuero tuffe tufte tulet tulfo tulle tulor tulou tuotu turbe turbo turbt turel turet turew turle turot turow turre turro turtu turul turut tutee tutel tuteo tutle tutor tutow tutte tutto tuuru tuwel tweel tweer tweet twelf twell twelt twere two-l twoer twolf twoll twoof twoor twort twote twoto ubble uber- ubobo ubolt uelfe ufere ufofu uforb ullet ullur ulowo ulteo ultre ululu uluru uouee urelu ureo- urewe uroob urour urowo urtel urter urtlu urubu