botou botro botte bottu bouce bouee bouer bouet boure boute bouto brebu brece breer breet breo- breoc brere breto brett breu- brobo broce broer broto broue brout brrrr bruce bruer bruet brute btc-e btr-t bubbe buber bucco buceo bucet bucur burcu buret 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 ceco- ceere ceoce ceoor cerbu cerc- cerce cerco cerec cerer ceret cero- ceroc cerou cerre cerro certe ceto- cette co-bo co-co cobbe cobot cobre cobue cocc- cocce cocco coceo cocto cocur coete coeur cooee cooer coore coote corbe corbo corbu corce core- coree corer coreu coro- corot corre corte corto coter cott- cotte cotto cottu couco couer courb coure court couru couto coutu crebe crece creer 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 cutco cutcu cutee cuter cutro cutto ebber ebbet ebert eboue ebure ecto- ector ectot eeeee eorre erbbe erber erect erere eroor erore eroto error errtu erte erter eruct etete etoro etour etree etter eturu eubro eucre euro- eurre o-r-b obbet obert obete oboro obote oboue obout obreb occur ocoee ocote ocr-b ocree octet octo- octor oeco- oo-er oocre ooooo orbec orbot orcet oreco oreo- orere orero orobe orobo oroco oroer orout orret orter ortet ortoo orube oruce oruro orutu otcbb otere otero otoce ototo otour otter ottur oture oubut ouert ouoro ource oure- outer outre outro outto r-co- rebbe rebec reber rebet rebut recce recco recet rect- recte recto recue recur recut reece reere rere- reree reret rerob retee reter retro rette retto reuer reuet reute ro-ro robbe robbo robec rober robo- robor robot robrt robte robur rocco rocor rocou roero rooer roore roote rooue rorbu rorer roteb roter roto- rotor rotot rotte rotto roubt rouer rouet roure route routt rubee ruber rubor rucer ruere ruete rurec ruter rutte ruutu tbtbt tbutt tcobb teber tebet tecou tectb teoco terce terco teret tereu teror terre terro tert- teruo teter tetr- tetro tette teuto to-be tobbe tober tobet tobor tobot tobou tobre tocco toco- tocut toece toerr toeto toobe toore torbe torce toreo toret torob torre torro torte torto tortu torue toter toto- totoe totoo totte toure touro toute trboc treco treer treet trere trete trett treut troco troee trott troue trout trubu truce truco truer truro trute ttttt tuber tubo- tubou tucet tuctu tuero tuotu turbe turbo turbt turco turet turoc turot turre turro turtu turut tutee tuteo tutor tutte tutto tuuru u-cee uber- ubobo ucero uouee ureo- uroob urour urter urubu uruce urucu urutu utebo uter- utero utro- utror utter uttur utube uturu ututo uuuuu

b-tree bbbbbb bebeto bebout becure beebee beeter berbee berbeo berber berceo bereet berere berour berrer berret bertre berube betere betete betrue bettee better bettor betutu beurre bobber bobcut bobete bobote boccob boeber boerre boober booboo bootee booter booue borbor boreto borore bororo borte botere botero botete botoro botree botter boture boubou boueer bouree bourou bourre bouter boutet boutob boutre boutte breere bretcu brette bretuo breuer brocco brocor brocot broter brotto brouet broute brubru bruree brutto bubber bububu bucco- burbet burbot burbur burcer burcot burotu burree burrer burret burutu butbro butere butter buttto butucu buutuo c-cube ceecee cerco- cerete cerote certco ceruce cetore cobber cobbob cocco- cococo cocto- coerce coo-er coocoo cooter corbet corect corour corteo cortot coruco coruro cotote cotter courbe courbu cource couret courr- couter crecco creete creote crobot crocco crocer croote croute cruro- cubber cubero cubert cubube cucube cucurb curber curete curour currer curret curror curter curtoe cururo cutcut cutout cuttee cutter cuttoe cuttoo ebbert ebbout eburru ecobee ecobot ecotec ecourt ecoute ectro- eebree eerect eototo erbree eroto- errett errour etcetc etoeot ettore ettutu eucort euroto eururo eutere euttob oberto obrute obtect obtree obturb occour occure ocourt ocreo- octett octree octuor oerter oooooo orcure orcutt orrour otocec ottoor ouerre out-be outcut outour outreb outter outtro r-tree rebbec rebeuc reboot rebore rebote rebour rebute recoct recore recour recreo recrue recto- rector recuer recurb recure recurt rerobe reroot retece reteer reteet reteoo retere retore retort retour retree retret retro- retrot retter rettur retube returu reuere reuour reuter reutte robber robeco robert roboto rococo rocoto rooter rootte rorter rotour rotout rotrou rotter roture roucou router routot rubbee rubber rubbot rubout rubro- rubutu ruocco rurutu rutour ruttee rutter rutube t-tree t-tube tecto- tector teebee teetee teeter tercer tercet terete terreo terrer terret terror terrot terrou terter tertre tetete tetter teucer to-cut tobeor toboot toccer toeout toetoe tooter tootoo torcec torero tororo torret tortor tortou tortue totebo totoro totrot totter toubbe tourbe tourer touret tourou tourte touter toutou toutuo tr-rec trebce treboc trebor trebur treece treete tretee trette treuce trotec trotro trotte trucco trueto truett tubber tubboe tuorbe tuotuo turbet turbo- turbot turret turtur turucu tururu tuteur tutour tutter tuttut u-boot u-tube uberto ubetoo urecco ureter urette urouer uroure utero- uteute utroor

bbbbbbb bcutter bebeeru becourt beetree berbere bercero berceto berrett bertero bertree betoure betutor bo-tree bobotee bocourt boe-bot boo-boo bootcut bootout borbecu borbore boreout boretto borotou borrero boruret bottero bouere bourbre bourout bourree bourret bourrou brouere brouter brucebo brutter burbure burcote burcott burette buttero buttout cerbere cerebr- cerebro cerreto cert-ee cobbett coberte cobette cocotte cocture coercee coercer cooccur corbere corbett corober correct corrour cotorro cotutor cou-cou coubert couette courber courbet coureur courter courtet coutere couture creetur creuett crocere crottet crouter crucero crutter cuebert curette currere cut-out e-corce e-tutor ecoburb ecocert ecocute ecoreco ecoteur ecotour eeeroer ercourt erecter erector eubucco eurobot oberrot obrubce obterre obtrect occurto octette october octobre orebro oroboro orocue orrouer ottetto ottrott ourouer out-cue outboob outbutt outotec outroot re-bore rebout- recetor recetto recorte recouer recourt recrute rectour recurer reerect reoccur reroute reteere reterre retrete rettert rettore reutter robecco roberto robobee rococco rocourt rootout rootrot rotebro roturer roucote routeto rub-out rubbour ructure tebbutt tec-tec tecture tercero terere tereto- terreer terrere terrour tetcott tettete to-bote toe-out toe-toe too-too toocute tootrue