-ene -yne bbbb bbeb bbpr bbrc bcbc bcbp bccc bcec bcer bcnu bcpp bcru bcuc bcup bebb bebe beby becu beeb been beep beer beey bene benn benu berc bere bern berr beru bery beur beux beye beyn bner bnpp bnrr bpcp bprc brcb brce breb brec bree bren brep brer brex brey brrr bruc brue brun brup brux bry- brye bryn bubb bube bubu bucc buce bucu buen buer bueu bunb bune bunn bunu bupc bur- burb bure burn burp burr buru bury buxy buyu byce byen byer bync byre byrn byun cbbc cbcc cbce cbcn cbcp cbcr cbcu cbec cbee cber cbpc cbpp cbre cbrn cbry cbux ccbc ccbn cccb cccc cccp cccu ccee ccnb ccnc ccne ccnp ccnr ccnu ccny ccpe ccpn ccpp ccpr ccrc ccre ccrp ccuc ccup cebp cebu cec- cece cecp ceeb ceec cen- cene ceny cepc cepe cepp cepr cer- cerc cere cern cerp cery ceux cexe ceyu ceyx cnbc cnbp cncp cnep cnex cnrc cnrr cpbc cpce cpcu cpeb cpep cper cpnb cpre crbc crbu crcc crce crcr cre- creb crec cree cren crep creu crex crne crpc crub crue crun crup crux cry- cryb cryn cub- cubb cube cuby cucc cuce cucn cuer cune cunp cuny cupe cupp cupr curb cure curn curr cury cuy- cuyp cuyr cxxx cybb cybc cyc- cycb cycc cyen cyn- cyne cypc cyre cyun cyy- cyyc cyyn ebbc ebbr ebby ebcc eben eber ebru ebur ecbc ecbe eccb eccc ecce ecne ecpp ecrc ecrr ecru eeby eeee eeny eerc eery enb- enbn enbr enby ence ency enee ener eney ennc enne ennu enny enp- enry enue enur enye epcc epec epee epen eper eppc eppp eppy eprb eprp epub epxp epyx er-x erbb erbe ercc erce ercp ereb erec eren erer erne erpe errc erre erub eruc erur eryc erye eryx eubc euer euny eur- eurc eure eury exec exen exer expn expr exrx exxy eyeb eyec eyen eyer eyey eyne eype eypx eyre eyry eyup eyyr n-up nbbc nbcc nber nbpp ncbc nccc nccn nccp nccr nccu ncec ncee ncen ncep ncer ncnc ncpc ncrc ncre ncrp ncue nebb nebe nebn nebr nebu necc nece necr necy neeb neen neep neer nene nenu nepc nepe nepr nerc nere nerr neru nery neuc neue neun neur neuu neuy nexe nexx neye neyn nnnn nnpr npcc nppc nren nrpc nrpn nrrc nubc nube nuby nuce nucu nuee nuer nunc nune nunn nuny nupe nurc nure nurn nurp nurr nuru nycc nyce nycy nyen nyer nyne nyny nypc nype nyrb pbcc pcbc pccc pcce pcep pcer pcnx pcpb pcpn pcpp pcrc pcre pcun pece pecr pecy peec peen peep peer pen- penc pene penn penu peny pepe per- perc pere pern perp perr peru pery peun peur peyn peyr pnec pneu pnpp pnup pnyx ppcc ppen pper pppn pppp pprc ppru ppur ppye prbc prcc prcp pre- preb prec pree pren prep preu prex prey prnp prue pruu pu-e pube pubu puce puer pueu punc pune punu punx puny pupe pupu pupy pur- purb pure purp purr puru pury puuc puxe puxy puy- pyce pyep pyn- pyne pype pypy pyr- pyre pyry rbbb rbbr rcbc rccb rccc rcep rcnr rcyc rebb rebe rebu recc rece recp recr recu recy reeb reen reep rene renn renu reny repe repp repr repu repy rere reru rery reue reup reuu reux rexx reye reyn rnbr rncp rppn rpyc rrrr rrun rubb rube rubp rubu ruby ruce ruen ruer runc rune runn runy rupe rupp rupy rurc rure rurp ruru ruun rybe rybp ryeb ryen ryne rynn rype ryue ryun u-rp ubbe uber ubpc ubyx ucbc uccp ucpb ucrc unbe uncc unce uncp uneb unec unee unen uner unne unpc upbe upby upen upne upnp uppc uppe uppp uppu uppy upup urbe urcy ure- urex urey urne urre urry urun urup urur uryn uucp uuen uuuu uuyn uxue uyre xbee xeer xen- xene xenn xenu xer- xexe xnee xpcc xper xrep xuxu xxxx xxxy xyne xyr- yben yber ybry yccc ycee ye-u yeen yeep yeer yenc yene yepe yepp yerb yere yern yerr yery yeue yeun yeux yeye yeyr ynce ynne ypcc yren yrne yrun yryn yubu yuce yuen yuer yune yunx yuny yure yurn yury yuxu yuye yuyu yyyy