-ene -one -ose -yne cccc cccp cccs ccee ccnc ccne ccnp ccnr ccns ccny ccoc ccpe ccpn ccpp ccpr ccps ccrc ccre ccrp ccrs ccsn ccsp ccss cec- cece ceco cecp cecs ceec cees cen- cene ceno cens ceny ceop ceor ceos cepc cepe cepo cepp cepr ceps cer- cerc cere cern cero cerp cers cery cesc cese cesp cesr cess ceys cnco cncp cnep cnes cnrc cnrr cnss coce coco cocp coen coep coes con- conc cone conn cono cons cony coon coop coos cope copo copp copr cops copy cor- corc core corn coro corp corr cors cory cosc cose coso cosp coss cosy coyn coyo coyr coys cpce cpcs cpep cper cpns cpos cpps cpre cprs cpsc cpso cpsr crcc crce crcr cre- crec cree cren creo crep cres crne crns croc croe cron croo crop cror croy crpc crps crsp crss cry- cryn cryo crys cscc csce csco cscr cscs csec csee csep cser csne csnp csny csor csos cspc cspe csps csrc csrs csse cssr csys cyc- cycc cycs cyen cyn- cyne cyno cyon cypc cyps cyre cyrs cyse cyy- cyyc cyyn eccc ecce ecco eces ecne eco- econ ecop ecos ecpp ecrc ecrr ecsc ecse ecsp ecss eecs eeee eees eens eeny eeoc eeps eerc eero eers eery eese eesy ence enco encs ency enee eneo ener enes eney ennc enne enns enny eno- enoc enoe enon enos enoy enp- enrs enry ense enso enye enyo enys eoes eone eons eore epcc epec epee epen eper epes epns epoc epon epor epos eppc eppo eppp epps eppy epro eprp eprs epsc epsp epss ercc erce ercp erec eren erer eres erne erno erns eroc eroe eron eroo eros erpe erps errc erre erro errs erse erso eryc erye esce esco escr escs esee esen eseo eser eses esne eso- esop esos espc espe espn espo espp esps espy esse esso essp essy esyn eyec eyen eyer eyes eyey eyne eype eyre eyry eyse eyyr nccc nccn nccp nccr nccs ncec ncee ncen ncep ncer nces ncnc ncoc ncor ncos ncpc ncrc ncre ncrp ncsc ncse ncss ncsy necc nece neco necr necs necy neen neep neer nees nene neno nens neo- neoc neon neoo neos nepc nepe nepr neps nerc nere nero nerr ners nery nesc nese nesn neso nesr ness neye neyn neyo neys nnes nnnn nnos nnpr nnss noce noco nocs noer noes non- none nonn nono nons noo- noon nooo noop noor noos nope nops nor- norc nore norn noro norr nors nory nos- nose noss nosy noye noyo noys npcc npes nppc npss npsy nrcs nren nroc nron nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nsec nsep nser nsnr nsos nspc nsps nsrc nssc nsse nsso nssp nssr nsss nycc nyce nyco nycy nyen nyer nyes nyne nyny nyon nypc nype nyro nysc nyse nyss o-eo occc occn oce ocee ocon ocos ocpp ocre ocro ocrr ocrs ocys oec- oecc oeec oen- oeno oens oeps oere oers oese oeye oeyo onc- once onco one- onec onee oneo onep oner ones oney onne onno onon onor onos onoy onsc onse onso onys oocr ooer ooes oone oons oooo ooos oops oore oory oose opec open opep oper opes opo- opon opor opos oppo opps oppy opry opsy opye orce orco orcs ore- orec oren oreo orer ores orey ornc orne orno orns orny oro- oroe oron oror oros oroy orpc orpe orps orro orrs orry orse orso orsy orys oscc osce osco osec osee osen oser oses osey osno osnr osny osoo osor osos osro osse osso ossy osyp oyce oyee oyen oyer oyes oyne oyns oyon oyre oyse oyss pccc pcce pccs pcep pcer pcns pcoe pcos pcpn pcpp pcps pcrc pcre pcse pcso pece peco pecr pecs pecy peec peen peep peer pees pen- penc pene penn peno pens peny peon peor pepe pepo peps per- perc pere pern pero perp perr pers pery pese peso pess pesy peyn peyo peyr peys pnec pnes pnon pnpo pnpp pnro pnsc poce poco pocs poer poes poey ponc pone pono ponp pons pony poon poop poor poos pop- popc pope popo popp pops popy porc pore porn poro porr pors pory pose posn poso poss posy poyn poyo poyr poys ppcc ppcs ppen pper ppos pppn pppo pppp ppps pprc ppss ppye prcc prcp prcs pre- prec pree pren prep pres prey prnp pro- proc proe pron proo prop pros prps prrs prsc prse prso prss prys psco psec psnc psnr psoc pson psos pspp pspr psps psrp pssc psse psso psy- psys pyce pyep pyes pyn- pyne pyo- pyon pyos pype pypy pyr- pyre pyro pyry pyse pyss rccc rccs rcep rcnr rcon rcos rcpo rcps rcsc rcss rcyc recc rece recp recr recs recy reen reep rees rene renn reno rens reny reop reos repe repo repp repr reps repy rere rero rers rery rese resn reso resp ress reye reyn reys rnco rncp rncs rnsp rocc roce roco rocs roen roer roes roey ronc rone rono rons rony roon roop roor roos rope ropo rops ropy rorc rore roro rory rosc rose roso rosp ross rosy roye royn roys rpcs rpoe rpon rpos rppn rpps rpyc rrrr rrsp rscc rscn rscs rscy rsee rsnn rsno rsnr rsos rspo rsps rsre ryen ryes ryne rynn ryon rype rysy s-os sccc scce sccp sccs sccy scec scee scep scer scey scnr scon scoo scop scor scpe scpo scps scr- scrc scre scrn scrs scry scsc scsn scso scsr scye scyn se-c se-e se-n se-o se-s se-y sec- secc sece secn seco secr secs secy seec seen seep seer sees seey sene senn seno senr sens seny seoc seon seop sepe sepn sepo sepp sepr seps serc sere sern sero serp serr sers sery sesc sese seso sess seye seyn seys sncc snco sncp snee snep sner snes snns snoc snoo snop snor snos snpo snpp snrs snsy snye snys soce soco socr socs socy soec soen soeo soep soes