-ene -one -yne bbbb bbeb bbfc bbfn bboy bbrc bbyo bcbc bccc bcec bcer bcfc bcof bcor bebb bebe bebo beby beeb beef been beer beey befe beff befo bene benn beno beo- beof beon beor berc bere bern bero berr bery beye beyn bner bnoc bnor bnrr bobb bobe bobo boby boce boco boec boee boef boen boeo boer boey bofe boff bonc bone bonn bono bony boob booc booe boof boon boor bor- bore borf born boro borr bory boye boyf boyn boyo brcb brce breb brec bree bref bren breo brer brey brfc brno brob broc broe bron broo bror brrr bry- brye bryn bryo byce byen byer bync byno byob byoc byon byre byrn c-bo cbbc cbcc cbce cbcn cbcr cbec cbee cbef cber cbfb cbfc cbre cbrn cbry ccbc ccbn cccb cccc cccf ccee ccfc ccff ccnb ccnc ccne ccnf ccnr ccny ccob ccoc ccrc ccre ccrf cec- cece ceco ceeb ceec cef- cefc cefn cen- cene ceno ceny ceor cer- cerc cere cerf cern cero cery cfbc cfbn cfbr cfcb cfcf cfcn cfco cfcy cffb cffr cfnb cfnr cfor cfrb cfre cfrn cfry cfyn cnbc cnco cnrc cnrr cobb cobe cobo coby coce coco coen cofc cofe coff con- conc cone conf conn cono cony coob coof coon cor- corb corc core corf corn coro corr cory coyf coyn coyo coyr crbc crcc crce crcr cre- creb crec cree cren creo crfc crne crob croc croe cron croo cror croy cry- cryb cryn cryo cybb cybc cybo cyc- cycb cycc cyen cyfe cyn- cyne cyno cyon cyre cyy- cyyc cyyn ebbc ebbo ebbr ebby ebcc eben eber ebfc ebno eboe ebon eboo ebor eboy ebro ecbc ecbe eccb eccc ecce ecco ecef ecfc ecfr ecne eco- econ ecrc ecrf ecrr eeby eeee eefe eefn eeny eeoc eerc eero eery efbr efco efen efeo effy efon efor enb- enbn enbr enby ence enco ency enee eneo ener eney enfb ennc enne enny eno- enoc enoe enon enoy enry enye enyo eone eore erbb erbe ercc erce ereb erec eren erer erfc erne erno erob eroc eroe eron eroo errc erre erro eryc erye eyeb eyec eyen eyer eyey eyne eyre eyry eyyr fccf febo fece feeb feen feer fefc fefe feff fefo fene fenn feny feof feon ferb ferc fere fern fero ferr fery feyn feyr ffcc ffee ffff ffrr foce foco foer fofo fone fono fony foof foon for- forb fore forn foro forr foyn frbc frcc frcn free fren freo frey frfc frob froe fron frye fyce fyen fyeo fyfe fyne fynn fyre fyry nbbc nbbo nbcc nbco nber nbfc nboy ncbc nccc nccf nccn nccr ncec ncee ncef ncen ncer ncfc ncfe ncnc ncoc ncor ncrc ncre nebb nebe nebn nebo nebr necc nece neco necr necy neeb neef neen neer nefe neff nene neno neo- neoc neon neoo nerc nere nerf nero nerr nery neye neyf neyn neyo nfer nfff nfon nfyb nfyc nnnn nobc nobo noce noco noer non- none nonn nono noo- noob noon nooo noor nor- norb norc nore norf norn noro norr nory noye noyo nren nrfc nroc nron nrrc nycc nyce nyco nycy nyen nyer nyne nyny nyon nyrb nyrf nyro o-eo obbo obby obec oben ober obey oboe obon obor oboy obre obro ocbc occc occn oce ocee ocef ocon ocre ocro ocrr oec- oecc oeec oen- oeno oere oeye oeyo ofcr ofen ofer off- offc offe offo offr offy ofno ofor ofre onby onc- once oncf onco one- oneb onec onee oneo oner oney onne onno onon onor onoy oobe ooby oocr ooer ooff oofy oone oooo oore oory orbb orbe orbo orby orce orco ore- oreb orec oren oreo orer orey orfe orff ornc orne orno orny oro- oroe orof oron oror oroy orro orry oyce oyee oyen oyer oyne oyon oyre rbbb rbbr rcbc rcbo rccb rccc rcfc rcnr rcon rcyc rebb rebe rebo recc rece recr recy reeb reef reen refe reff refn refr rene renn reno reny reof rere rero rery reye reyn rfef rffc rnbr rnco rob- robb robe robo roby rocc roce roco roen roer roey rofc rofe roff rofo ronc rone rono rony roob roof roon roor rorc rore roro rory roye royn rrfc rrrr rybe ryeb ryen ryfe ryff ryne rynn ryob ryon ryyf yben yber ybor ybry yccc ycee yeen yeer yefe yeff yenc yene yeof yeon yerb yere yern yero yerr yery yeye yeyo yeyr ynce ynne ynon yobo yoen yoff yone yono yoof yoon yore yorn yoro yory yoye yoyn yoyo yren yrne yrof yron yryn yyfe yyff yyyy