-ene bbbb bbeb bbet bebb bebe beeb beej been beer beet bene benj benn bent benu bere bern berr bert beru bete bett betu beur bner bnet bnrr breb bree bren brer bret brje brnj brrr brue brun brut bten btrt bttb bubb bube bubu buen buer bueu buje buju bunb bune bunn bunt bunu bur- burb bure burj burn burr burt buru but- bute butt ebbr eben eber ebru ebur eeee eent eete eetu ejer enb- enbn enbr enee ener enne ennu ent- ente entj entr enue enur enut erbb erbe ereb eren erer eret erne erre ertu erub erur etbr etee eten eter etne etnr etre ette ettn ettu etun euer eur- eure eurt jebb jebe jeer jeet jeju jene jent jenu jere jert jeru jetb jete jetn jett jeur jner jnet jrbr jube jubu juju junb june junr junt junu jure jurn jurr jute nbbj nber nebb nebe nebn nebr nebu neeb neen neer neet nene nent nenu nere nerr nert neru net- netb nete nett neue neun neur neut neuu nnnn nntn nren nter nteu ntnu ntru nttr nube nuee nuer nune nunn nunt nure nurn nurr nurt nuru nute nutt nutu rbbb rbbr rebb rebe rebu reeb reen reet rene renn rent renu rere rert reru rete retr rett reue reut reuu rnbr rnnt rnut rrrr rrun rtee rubb rube rubu ruen ruer ruet rune runn runt rure ruru rute rutt rutu ruun tbrb tebu teej teen teer teet tejn teju tenb tene tenn tent tenu ter- tere terj tern terr teru tete tetr tett tetu teut tneb tnut tre- tree tren tret treu trte trtr trub true trun trut truu ttbb tten tter tttt tubb tube tubr tubu tuen tuer tuet tunb tune tunn tunu turb ture turn turr turt turu tute tutt tutu ubbe uber ubet unbe uneb unee unen uner unne untb unte unut urbe ure- uret urne urre urte urun urur urut uter utne uttu uuen uuuu