mreb mred mree mren mrkr mrmd mrud mruk mube mubi mudd mude mudi mudu mued muee muid muie muin muir muke muki mume mumm mumu mund mune muni munk munn munu murd mure muri murk murn murr muru n-ii nber ndbm nddb ndde ndei nder ndre ndri nebb nebe nebn nebr nebu nedd nede nedi nedu neeb need neei neem neen neer neid nein neir neke neku nem- neme nemi nemn nemu nend nene neni nenu nerd nere neri nerk nerm nerr neru neue neuk neum neun neur neuu nibe nibi nibm nidd nide nidi nied nien nier niir niiu nike niki niku nimb nimd nimi nimr nimu nind nine nini nire niru niue niur nkum nm-e nmri nndb nnnn nrem nren nrrd nube nubi nubk nudd nude nudi nuee nuer nuik nuim nuin nuke nuki nuku numb nume numi numm numu nune nunk nunn nurd nure nuri nurn nurr nuru nuuk rbbb rbbr rbmk rdbm rder rebb rebe rebk rebu redd rede redi redr redu reeb reed reek reem reen reid reii reik reim rein reir reiu reke reki reme remi remn rend rene reni renk renn renu rerd rere reri reru reue reuk reuu rib- ribe ribu ridd ride ridi ried riek riem rien rier rieu riin rike riki rikk riku rime rimi rimm rimu rind rine rink rinn rire riri riue rnbr rndm rnie rnin rred rrkm rrrr rrum rrun rubb rube rubi rubu rudd rude rudi rued ruen ruer ruid ruin ruke ruki rukk rukn ruku rumb rume rumi rumm rund rune runi runk runn rurd rure ruri ruru ruud ruun u-ie ubbe ubbi ubek uber ubid ubii ubik ubir ubud uddi udem uden uder udid udim udin udir uduk udun uein ueir ueki uend uirr ukek ukeu ukum ukur umb- umbe umbi umde umer umik umri unbd unbe unde undi uneb uned unee unen uner uni- unie unii unik unin unir unke unkn unmr unne unni unum urbe urbi urde urdu ure- ured urib urie urik urim urin uriu urke urmi urne urni urre urri uruk urum urun urur uuen uuni uuri uuuu