-tree bbbee be-er be-ro beber bebog bebot becco becue becut beebe beete beeut begee beget begge begob begor begot begto begue begur begut beote beour berbe bercu berec bereg beret berge berob beroe beror berre berru berte berto betee beter betoo betor betou betre bett- bette betto beuer beure beute bo-bo bobet boboc bobr bobre bocce bocet bocor boece boege boero boeur boger boget bogge bogoe bogor bogot bogu bogue bogur bogut booce booco booer boore boort booru borbo borce borec boree borer boret borge borgo borgu boro- boroo borot borou borre borro borut botet botou botro botte bottu bouce bouee bouer bouet bouge boure bourg boute bouto brebu brece breer breet breg- brege bregg breo- breoc brere breto brett breu- brobo broce broer broto broue brout brrrr bruce bruer bruet bruge brugg brute btc-e btr-t bubbe buber bucco buceo bucet bucur buger bugge bugoo bugre burcu buret burge burgo burgu buroo burro burru burte burtt buruc burut butec buteo buter buto- butor butot butou butte butuo butut c-cor c-tec ccccc ccett cebec ceber cebgo ceco- ceere cegge ceoce ceoor cerbu cerc- cerce cerco cerec cerer ceret cerge cero- ceroc cerou cerre cerro certe ceto- cette co-bo co-co cobbe cobot cobre cobue cocc- cocce cocco coceo cocto cocur coete coeur cogue cooee cooer coore coorg coote corbe corbo corbu corce core- coree corer coreu corge coro- corot corre corte corto coter cott- cotte cotto cottu couco couer courb coure court couru couto coutu crebe crece creer cregg creo- creot crete cretu creu- creue croce croco crooe croot crore crote crott crout cruce cruet cruor crure ctree cttee cubbe cubeb cuber cubo- cubot cubub cuero cueto cuoco cuore curce curer curet curre curro curto curug cutco cutcu cutee cuter cutro cutto ebber ebbet eberg ebert eboue ebure ecto- ector ectot eeeee egger egret eorre erbbe erber erceg erect erege erere ergo- ergot eroge eroor erore eroto error errtu erte erter ertug eruct erugo etete etoro etour etree etrog etter eturu eubro eucre euro- eurre gberg gberu geber gebet gebre gebur gecco geebo geere geert geete gegge georg gerbe gerbo gerce gerre gertt getco getee geter getgo gette getto go-go go-oo go-to gobbe gobbo gobeo gobet gobot gocco gocoo goget gogro gogue goobo googe goore goote goout gorbe gorce goree gorer gorge gorgo gorre goter gotoo gotor gotto gotur gouet gouge goure grebe grebo grece greco grecu greer greet grege gregg grego greot grete grett greut grgur groce groet groge grogg groot grote grott groue grout grrrr grubb grube grure gruut gtrot gtube gubbe gubbo guber gubru guce gucer guere guero guoge gurge guroo gurre gurro gurur gutte o-r-b obbet obegu oberg obert obete oboro obote oboue obout obreb occur ocoee ocote ocr-b ocree octet octo- octor oeco- ogogo ogugu oo-er oocre ooooo orbec orbot orcet oreco oreo- orere orero orgue orobe orobo oroco oroer orout orret orrgo orter ortet ortoo orube oruce oruro orutu otcbb otego otere otero otoce ototo otour otter ottur oture oubut ouert ouoro ource oure- outer outgo outre outro outto r-co- rebbe rebec rebeg reber rebet rebut recce recco recet recog rect- recte recto recue recur recut reece reege reere regec reger reget regge reggo regtt regur regut reorg rere- reree reret rerob retee reter retgo retrg retro rette retto reuer reuet reute ro-ro robbe robbo robec rober robo- robor robot robrt robte robur rocco rocor rocou roero roger roget rogge rogue rooer rooge roore roote rooue rorbu rorer roteb roter rotge roto- rotor rotot rotte rotto roubt rouer rouet rouge roure route routt rubee ruber rubor rucer ruegg ruere ruete ruger ruget rugge rurec ruter rutog rutte ruutu tbtbt tbutt tcobb teber tebet tecou tectb teege tegre teguc tegur teoco terce terco teret tereu terge tergo tergu teror terre terro tert- teruo teter tetr- tetro tette teuge teuto to-be to-go tobbe tobeg tober tobet tobog tobor tobot tobou tobre tocco toco- tocut toece toego toerr toeto toget togge togou togue toobe toore torbe torce toreo toret torgo torob torog torre torro torte torto tortu torue toter toto- totoe totoo totte tougu toure touro toute trboc treco treer treet treg- trego trere trete trett treut troco troee trott troue trout trubu truce truco truer trugg trugo truro trute ttttt tuber tubo- tubog tubou tucet tuctu tuero tugce tugou tuotu turbe turbo turbt turco turet turgo turoc turot turre turro turtu turut tutee tuteo tutor tutte tutto tuuru u-cee uber- ubobo ucero ugro- ugrug uouee ureo- urger urgut uroob urour urter urubu uruce urucu urutu utebo uter- utero utro- utror utter uttur utube uturu ututo uuuuu