-tree bbbee be-er be-ro beber bebot becco becej beebe beete bejte beote berbe berec beret berob beroe beror berre berte berto betee beter betoo betor betre bett- bette betto bo-bo bobet boboc bobr bobre bocce bocet bocor boece boero bojer booce booco booer boore boort borbo borce borec boree borer boret borje boro- boroo borot borre borro botet botro botte brece breer breet brejo breo- breoc brere breto brett brobo broce broer broje broto brrrr btc-e btr-t c-cor c-tec ccccc ccett cebec ceber ceco- ceere ceoce ceoor cerc- cerce cerco cerec cerej cerer ceret cerje cero- ceroc cerre cerro certe ceto- cette co-bo co-co cobbe cobot cobre cocc- cocce cocco coceo cocto coete cojoc cooee cooer coore coote corbe corbo corce core- coree corer coro- corot corre corte corto coter cott- cotte cotto crebe crece creer creo- creot crete croce croco crooe croot crore crote crott ctree cttee ebber ebbet ebert ecto- ector ectot eeeee eject eorre erbbe erber erect erere eroor erore eroto error erte erter etete etoro etree etter j-roc jebet jeroo jerre jerte jetco jetee jeter jette jetto jobbe joe-e jooto joree jotto jrotc o-r-b obbet obejo obert obete objet oboro obote obreb ocoee ocote ocr-b ocree octet octo- octor oeco- oerje oo-er oocre ooooo orbec orbot orcet oreco oreo- orere orero orobe orobo oroco oroer orret orter ortet ortoo otcbb otere otero otoce ototo otter r-co- rebbe rebec reber rebet recce recco recet rect- recte recto reece reere rejto rere- reree reret rerob retee reter retje retro rette retto ro-ro robbe robbo robec rober robo- robor robot robrt robte rocco rocor roero rooer roore roote rorer roteb roter roto- rotor rotot rotte rotto rtejr tbtbt tcobb teber tebet tectb teoco terce terco teret terje teror terre terro tert- teter tetr- tetro tette tjore to-be tobbe tober tobet tobor tobot tobre tocco toco- toece toerr toeto toobe toore torbe torce toreo toret torje torob torre torro torte torto toter toto- totoe totoo totte trboc treco treer treet trejo trere trete trett troco troee trott ttttt