-tree b-e-d bbbee bcced bcode bd-re bdoor bdort be-er be-ro bebdo bebed beber bebod bebot becco bedde bedee beder bedet bedot beebe beede beerd beete beode beord beote berbe berde berec bered beret berob beroe beror berre berte berto betee beter betoo betor betre bett- bette betto bo-bo bobet boboc bobr bobre bocce bocet bocor bodd- boded boder bodoc bodoe bodor boece boedo boero booce booco boode booed booer boord boore boort borbo borce borde bordo borec bored boree borer boret boro- borod boroo borot borre borro botet botro botte brece bredd brede bredt breed breer breet breo- breoc brerd brere breto brett brobo broce brodd brode brodo broer brood broto brrrr btc-e btr-d btr-t c-cor c-dot c-tec ccccc ccett cebec ceber ceco- ceddo ceded ceder cedor cedr- cedre cedro ceede ceedo ceere ceoce ceoor cerc- cerce cerco cerdo cerec cered cerer ceret cero- ceroc cerre cerro certe ceto- cette co-bo co-co co-ed cobbe cobot cobre cocc- cocce cocco coceo cocto codco codde codec coded coder codo coete coode cooed cooee cooer coord coore coote corbe corbo corce corde core- cored coree corer coro- corod corot corre corte corto coted coter cott- cotte cotto crebe crece crede credo creed creer creo- creot crete croce croco crode crodo crood crooe croot crore crote crott ctree cttee d-dot d-rod dcore ddddd ddebo debce debed deber debet debot debrc debro debte decet decor dedde dedee deder deece deede deere deore deoro derbe derce derde dered dero- derob derre derro deter detoo detre dette do-do dobec dobee dober dobre dobro doced docer docet dodec dodoo dodro doerr dooce doodo doore doote dorce dordt dored doree doret dorot dorre dorte doted doter dotoo dotto drbob drdre dredd drede dreed drere drobe drobo drode drood drote drott e-dee e-otd ebbed ebber ebbet ebert ecord ecto- ector ectot edder eddoe eddre edeo- edere edocr edoor edott edred eeeee eerde eorre erbbe erber erdec erdoc erdor erdre erect erede erere erode erodr eroor erore eroto erred error erte erter etete etoro etree etter o-r-b obbet obedt obert obete obodo oboro obote obreb ocoee ocote ocr-b ocree octet octo- octor odder odebo odeco odeto odore oeco- oo-er oocre ooooo orbec orbed orbot orcet order ordet ordoc ordre ordro oreco oredo oreed oreo- orere orero orobe orobo oroco orodo oroer orret orter ortet ortoo otcbb otere otero otoce ototo otter r-co- rebbe rebec reber rebet recce recco reced recet rect- recte recto redbd redco redde reder redoc redor redot reece reede reere reord rerde rere- reree reret rerob reted retee reter retro rette retto ro-ro robbe robbo robec robed rober robo- robor robot robrt robte rocco rocor rodbo rodde roded rodeo roder rodoc rodor roero roode rooer roore roote rorer roteb roted roter roto- rotor rotot rotte rotto tbtbt tcobb teber tebet tectb teder teerd teoco teodo terce terco teret teror terre terro tert- teter tetr- tetro tette to-be to-do tobbe tobed tober tobet tobor tobot tobre tocco toco- toder todor toece toerr toeto toobe toode tooed toord toore torbe torce torde tored toreo toret torob torre torro torte torto toted toter toto- totoe totoo totte trboc treco treed treer treet trere trete trett troco trode troee trood trott ttttt