dddd dfrf dod- dodd dodo doff domm domn domo dond donn dono donr dood doof doom doon door dord dorf dorm dorn doro dorr doru doud douf doum doun dour drno drod drof drom dron drou drum druu dudd dudo dudu duff dufu dumm dunn duno duo- duon durn duro duru duur fdnm fdom ffff ffrr ffun fmno fmod fndd fndn fndr fnuf fofo fomo fond fono food foof foom foon for- ford form forn foro forr foud foun four frmn from fron frou frum frun fudd fuff fufu fumo fund funf fuor fur- furm furn furo furr mddm mdmf mdud mfor mfou mmdf mmfd mmff mmmd mmmm mmod mmor mmrf mmun mndo mndr modd modo modu moff mofo mofu momo momu mon- mond monn mono monu mood moon moor mord morf morn moro moru moud mouf moun mour mrdd mrmd mron mrud mudd mudu muff mufu mumm mumo mumu mund munn muno munu muon murd murn muro murr muru nddo ndom ndor ndrf nfff nfon nmff nmon nnnn nodo nodu nom- nomo nomu non- nonn nono nonu noo- noon nooo noor nor- nord norf norm norn noro norr noun nour nron nrrd nudd nudo nuff numm numu nunn nuno nuon nurd nurn nurr nuru oddd odmr odom odon odoo odor odou odum odur ofdr off- offo offr offu ofno ofor omn- omo- omon omoo omor omro omuo ondo onno onod onon onor onur ooff oooo oord ordn ordo ordu orff orfu ormn ormo orno oro- orof orom oron oror orro orum ouff oun- ound our- ourn ouro ouu- rmon rndf rndm rnod rodd rodo roff rofo romd romm romo rond rono rood roof room roon roor roro roru roud rouf roum roun rrrr rrum rrun rudd rudo ruff rufo rumm rumo rund runf runn runo rurd ruro ruru ruud ruun udon udoo udun umff ummo umno umor undo unfd unmr unno unon unrf unro unum uofm uofo uomo uor- urdu urff uro- urom uroo urum urun urur uuno uuuu