-form d-rod ddddd ddrmm ddrum do-do dodoo dodro dofor doodo dorff dorud dorum doufu doumu douro drmom droff drom- dromo drood droof droom droum drumm duddo dudou dufur duomo durum fodor fofum fomor foord ford- fordo form- forro forud forum forur fourd fourm fouro frodo fromm frood froom froud fu-fu fuddu furo- furor furud fuudo mmmmm mo-do modom modum modur moffo mooro mordu morfu mormo moror morou morro morum mrmom mroof mrorr muddu mummu murdo murdu murom muror murro murru murud murum oddur odoom odour odudu oduom oduro offof ofour ofrum omoro ooooo ordro orfor orm-d ormod ormur orodo oromo orrum oruro ouoro ro-ro rodor rofor romfo roodu roomu roumm ruffo rufo- rummo rummu rumor ruomu ufofu umour umudu urour uuuuu