b-e-d bbbee bd-re bdoor be-er be-ro bebdo bebed beber bebod bedde bedee beder bedub bedue beebe beede beerd beode beord beour berbe berde berdu bered berob beroe beror berre berru beuer beure bo-bo bobr bobre bodd- boded boder bodoe bodor boedo boero boeur boode booed booer boord boore booru borbo borde bordo bored boree borer boro- borod boroo borou borre borro boudu boued bouee bouer bourd boure brebu bredd brede breed breer breo- brerd brere breu- brobo brodd brode brodo broer brood broud broue brrrr brud- brude brued bruer bubbe buber budde buddu budur buord burde buroo burro burru burud d-rod ddddd ddebo debed deber debro dedde dedee deder dedur deede deere deore deoro derbe derde dered dero- derob derre derro derub derue deure do-do dobee dober dobre dobro dodoo dodro doerr doodo doore dored doree dorre dorud doude douer doure douro drbob drdre dredd drede dreed drere drobe drobo drode drood droue drude dubbo dubee duddo duded duder dudou duere duerr durbe dured duree durer durre e-dee ebbed ebber eboue ebure edder eddoe eddre edeo- edere edoor edred eeeee eerde eorre erbbe erber erdor erdre erede erere erode erodr eroor erore erred error eubro euro- eurre o-r-b obodo oboro oboue obreb obudu odder oddur odebo odeur odore odour odudu odure oduro oo-er ooooo orbed order ordre ordro oredo oreed oreo- orere orero orobe orobo orodo oroer orube oruro ouder ouedo ouoro ourde oure- rebbe reber rebud redbd redde reder redor redub redur reede reere reord rerde rere- reree rerob reuer ro-ro robbe robbo robed rober robo- robor robur rodbo rodde roded rodeo roder rodor roero roode roodu rooer roore rooue rorbu rorer roude rouer roure rubee ruber rubor ruder ruede ruere rurde u-dub uber- ubobo udder uouee urdee uredo ureo- uroob urour urubu uuuuu