-ene bbbb bbeb bebb bebe beeb beek beem been beer beke beme bemu bene benk benn benu bere berk berm bern berr beru beuk beur bner bnrr breb bree brek brem bren brer brkb brrm brrr brue brum brun bubb bube bubu buem buen buer bueu buke bukk buku bum- bumb bunb bune bunk bunn bunu bur- burb bure burk burm burn burr buru ebbr eben eber ebru ebur eeee eeke ekeb ekek eken eker ekne ekur embe embr emek emen emer emeu emme emmu emne emre enb- enbn enbr enee enem ener enke enkr enne ennu enue enum enur erbb erbe ereb erem eren erer erke erme erne erre erub erum erur euer eur- eure kbbb kbbe kbbk kbbm kbbr kbbu kbeb kbee kbek kben kber kbkb kbkk kbkr kbmb kbme kbmr kbnn kbnr kbnu kbrb kbre kbrk kbrn kbru kbub kbue kbuk kbun kbur kbuu kebb kebe kebn kebr kebu keek keem keen keer kekb keke keku kemb keme kemm kemr kemu ken- kene kenk kenm kenn kenr kenu ker- kerb kere kerk kerm kern kerr keru keun keur kkbb kkbe kkbn kkbr kken kkkk kkmk kkmr kknb kkne kknm kknn kknu kkrb kkre kkrk kkrn kkrr kkuu kmbr kmem kmen kmer kmke kmkk kmme kmmk kmmm kmmr kmnb kmne kmnr kmrb kmrn kmrr kmue kmun kmur knbb knbe knbn knbr knbu kneb knee knek knem knen kneu knkk knmb knnb knnk knnr knrb knrk knub knue knuk knur krbb krbe krbk krbm krbr kreb kree krek krem kren kreu krke krkk krkn krkr krku krmb krme krmn krmr krnb krne krnk krnm krnn krnu krrb krre krrk krrm krrn krrr krue kruk krum krun krur kubb kube kubr kubu kuek kuen kueu kuke kukk kukn kuku kume kumm kumr kumu kune kunk kunm kunr kunu kurb kure kurk kurm kurr kuru kuub kuuk kuur kuuu mebe meek meem meen meer meke meme memr memu men- mene menn menu mer- merb mere merk merm mern meru meum mker mknk mmen mmmm mmun mnbb mnek mnem mrbb mrbm mreb mree mren mrkr mruk mube muee muke mume mumm mumu mune munk munn munu mure murk murn murr muru nber nebb nebe nebn nebr nebu neeb neem neen neer neke neku nem- neme nemn nemu nene nenu nere nerk nerm nerr neru neue neuk neum neun neur neuu nkum nm-e nnnn nrem nren nube nubk nuee nuer nuke nuku numb nume numm numu nune nunk nunn nure nurn nurr nuru nuuk rbbb rbbr rbmk rebb rebe rebk rebu reeb reek reem reen reke reme remn rene renk renn renu rere reru reue reuk reuu rnbr rrkm rrrr rrum rrun rubb rube rubu ruen ruer ruke rukk rukn ruku rumb rume rumm rune runk runn rure ruru ruun ubbe ubek uber ukek ukeu ukum ukur umb- umbe umer unbe uneb unee unen uner unke unkn unmr unne unum urbe ure- urke urne urre uruk urum urun urur uuen uuuu