d-rod ddddd ddrmm ddrum dhoom dhuhr dhumm do-do dodoo dodro doggo doodo doogh dorog dorud dorum dough doumu douro drmom drog- drogh drogo drom- dromo drood droog droom droug drouh droum drugu drumm duddo dudou dumog duomo duruh durum ghoom ghour go-go go-oo goddo godor gogro gohog gohor gohur gomoh gomor gomur goodg goodo goooh goord gordo gorgo gorod goruh gough gourd grgur grodd grogg gromo grood groom groud grrrr grumo guddu gudur gummo guroo gurro gurum gurur hhhhh hhour hmugd ho-ho ho-oh hoddu hodhr hodod hodur hohum homo- homog hoord horod horom horro horru hough hourd hu-go hudud hudur huggo huhuh humor humur hurm hurum huuru m-dog mhorr mmhmm mmmmm mo-do modom modum modur mogod mohor mohrg mohur moogo mooro mordu mormo moror morou morro morum mough mrmom mrorr muddu mudug mugho mugur mummu murdo murdu murgh murgo murom muror murrh murro murru murud murum o-dog o-hum oddur odoom odour odudu oduom oduro oghum oghur ogogo ogugu oh-oh ohgod ohmmm ohour ohrum omoro oohdm ooooh ooooo ordro orm-d ormod ormur orodo oromo orrgo orrum oruro ouoro rhod- rhodo ro-ro rodor rogho rohod rohru roodu roomu rough roumm rughh rummo rummu rumor ruomu u-god ugro- ugrug uh-oh uh-uh uhdoh uhhoh uhhuh uhuru umhum umour umudu urdog urour uuuuu