b-e-d bbbee bcced bd-re be-er bebed beber becue bedde bedee beder bedub bedue beebe beede beerd berbe bercu berde berdu berec bered berre berru beuer beure brebu brece bredd brede breed breer brerd brere breu- brrrr bruce brud- brude brued bruer bubbe buber bucur budde buddu budec budur burcu burde burru buruc burud ccccc cduce cebec ceber ceded ceder cedr- cedre ceede ceere cerbu cerc- cerce cerec cered cerer cerre crebe crece crede creed creer creu- creue cruce crude crure cubbe cubeb cubed cuber cubub cudde curce cured curer curre d-cru ddddd debce debed deber debrc decur dedde dedee deder dedur deece deede deere derbe derce derde dered derre derub derue deuce deure drdre dredd drede dreed drere druce drude dubec dubee dubuc duded duder duduc duere duerr durbe dured duree durer durre e-dee ebbed ebber ebure edder eddre edere edred educe eeeee eerde erbbe erber erdec erdre erede erere erred eucre eurre rebbe rebec reber rebud recce reced recue recur redbd redde reder redub redur reece reede reere rerde rere- reree reuer rubee ruber rucer ruder ruede ruere rurde rurec u-cee u-dub uber- udder urdee urubu uruce urucu uuuuu