bdoor bhood bhour bhrrd bo-bo bo-ho bobr bodd- bodog bodor bogor bogu bogud bogur bohor boodh boord booru borbo bordo borgh borgo borgu boro- borod boroo borou borro boudh boudu bough bourd bourg brobo brodd brodo brogh brood broud brrrr brud- brugg brugh buddh buddu budur bugoo buoho buord burgh burgo burgu buroo burro burru burud d-rod ddddd dhobb dhubb dhuhr do-do dobro dodoo dodro dogbo doggo doodo doogh dorog dorud dough douro drbob drobo drog- drogh drogo drood droog droug drouh drugu dubbo duddo dudou duruh ghour ghubb go-go go-oo gobbo goddo godor gogro gohog gohor gohur goobo goodg goodo goooh goord gordo gorgo gorod goruh gough gourd grgur grodd grogg grood groud grrrr grubb gubbo gubru guddu gudur guroo gurro gurur hbogo hhhhh hhour ho-ho ho-oh hobor hobro hobub hoddu hodhr hodod hodur hoord horod horro horru hough hourd hu-go hubur hudud hudur huggo huhuh huuru o-dog o-r-b obhor obodo oboro obudu oddur odour odudu oduro oghur ogogo ogugu oh-oh ohgod ohour ohrob ooooh ooooo ordro orobo orodo orrgo oruro ouoro rhod- rhodo ro-ro robbo robo- robor robur rodbo rodor rogho rohob rohod rohru roodu rorbu rough rubor rughh ruhub u-dub u-god ubobo ugro- ugrug uh-oh uh-uh uhdoh uhhoh uhhuh uhuru urdog uroob urour urubu uuuuu