-ene bbbb bbdd bbeb bbpr bd-r bebb bebe bede bedu beeb beed been beep beer bend bene benn benu berd bere bern berr beru beur bner bnpp bnrr bprd breb bred bree bren brep brer brrr brud brue brun brup bubb bube bubu budb budd bude budu buen buer bueu bunb bund bune bunn bunu bur- burb burd bure burn burp burr buru dbpd dbrn dddd ddre ddub debe debu dedd dede dedu deeb deed deen deep deer dene denn denu depe depp depr der- derb dere dern derp derr deue deur dner dper dred dree dren drub drue drup druu dub- dubb dube dubu dudd dude dudu duer dune dunn dupe dure durn duru duur ebbr ebed eben eber ebru ebur edde eddp ede- eden eder edrn edru edun edup edur eede eedu eeee eend enb- enbn enbr end- ende endu ened enee ener enne ennu enp- enue enur epee epen eper eppp eprb eprp epub erbb erbe erde ereb ered eren erer erne erpe erre erub erur eude euer eur- eure n-up nber nbpp nddb ndde nder ndnp ndpd ndpr ndre nebb nebe nebn nebr nebu nedd nede nedu neeb need neen neep neer nend nene nenu nepe nepr nerd nere nerr neru neue neun neur neuu nndb nnnn nnpr nppd nren nrpn nrrd nube nudd nude nuee nuer nune nunn nupe nurd nure nurn nurp nurr nuru pbed pdpn pdpr ped- pede peed peen peep peer pen- pend pene penn penu pepd pepe per- perd pere pern perp perr peru peun peur pneu pnpp pnup ppen pper pppd pppn pppp ppru ppur pre- preb pred pree pren prep preu prnd prnp prpd prrd prud prue pruu pu-e pube pubu pudu pued puer pueu pund pune punu pupe pupu pur- purb pure purp purr puru rbbb rbbr rdbp rder rebb rebe rebu redd rede redr redu reeb reed reen reep rend rene renn renu repe repp repr repu rerd rere reru reue reup reuu rnbr rndp rpdp rppn rred rrrr rrun rubb rube rubp rubu rudd rude rudp rued ruen ruer rund rune runn rupe rupp rurd rure rurp ruru ruud ruun u-rp ubbe uber ubud uden uder udpd udun uend unbd unbe unde uneb uned unee unen uner unne upbe uped upen upne upnp uppe uppp uppu upup urbe urde urdu ure- ured urne urre urun urup urur uuen uuuu