-ene -one cccc cccp cccv ccee ccnc ccne ccnp ccnr ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrp ccrt cctc cctt cctv ccvo cec- cece ceco cecp cect ceec cen- cene ceno cent ceop ceor cepc cepe cepo cepp cepr cept cer- cerc cere cern cero cerp cert cet- cete ceto cetp cetv cevo cnco cncp cnep cnet cnrc cnrr cnrt cntc cntr coce coco cocp coct coen coep con- conc cone conn cono cont conv coon coop coot cope copo copp copr copt cor- corc core corn coro corp corr cort cotc cote cotn coto cott cove covo cpce cpep cper cpnt cpre cprt cptp cptr cpvc cpvt crcc crce crcr cre- crec cree cren creo crep cret crne croc croe cron croo crop cror crot crpc crrt crtc crtp crtv ctcp ctec cten ctep ctne ctor ctot ctpo ctpp ctrc ctrn ctrp cttn ctvo ctvt cvcc cven cver cvet cvrr cvte eccc ecce ecco ecct ecne eco- econ ecop ecot ecpp ecrc ecrr ecrv ect- ectc ecto ectv eeee eent eeoc eerc eero eetc eete eevn en-v ence enco enee eneo ener ennc enne eno- enoc enoe enon enp- ent- ente ento entp entr eone eont eore eotc eoto epcc epec epee epen eper epoc epon epor epot eppc eppo eppp epro eprp epte eptv ercc erce ercp erec eren erer eret erev erne erno eroc eroe eron eroo erpe errc erre erro erve etcc etco etec etee eten eter etne etnr etoe eton etre etro ette ettn etto etvo even ever evet evoe evon evoo evop evre n-tv nccc nccn nccp nccr ncct ncec ncee ncen ncep ncer ncnc ncoc ncor ncpc ncrc ncre ncrp nctc ncte nctr nctv necc nece neco necr nect neen neep neer neet neev nene neno nent neo- neoc neon neoo neot nepc nepe nepr nept nerc nere nero nerr nert nerv net- nete neto nett netv neve nevo nnnn nnot nnpr nntn nnvt noce noco noct noer non- none nonn nono nont noo- noon nooo noop noor noot noov nope nor- norc nore norn noro norr nort norv not- note noto nott notv nov- nove novo npcc npov nppc nprt nptc npte nptn nren nroc nron nrpc nrpn nrrc ntcc nter ntop ntpc ntrc ntto nttr nttv nvcc nvtc nvtv o-eo occc occn occt oce ocee ocet ocon ocpp ocre ocro ocrr oct- octe octo oec- oecc oeec oen- oeno oere oevp onc- once onco onct one- onec onee oneo onep oner onne onno onon onor onpt ont- ontc onto ontv oocr ooer oone oont oooo oore oort ootp opec open opep oper opet opo- opon opor oppo optn opto orce orco ore- orec oren oreo orer ornc orne orno oro- oroe oron oror orot orpc orpe orro ortc orte orto orve orvr otee oten otep oter oto- otoe oton otoo otor otov otpp otre otro otte otto ovee oven over ovet ovo- ovon ovoo ovot ovpp ovre pccc pcce pcep pcer pcnt pcoe pcpn pcpp pcrc pcre pcte pctv pece peco pecr pect peec peen peep peer peet peev pen- penc pene penn peno pent peon peor pepe pepo per- perc pere pern pero perp perr pert perv pete petn peto petr pett pnec pnet pnon pnot pnpo pnpp pnro pntr poce poco poer poet ponc pone pono ponp pont poon poop poor poot pop- popc pope popo popp popt porc pore porn poro porr port potc pote poto pott povo ppcc ppen pper pppn pppo pppp pprc pptn pptt pptv prcc prcp pre- prec pree pren prep pret prev prnp pro- proc proe pron proo prop prot prov prtc prtp prtr ptcc pten pter ptop pttc pvco rccc rcep rcet rcnr rcon rcpo rcpt rctc rctv rcvr recc rece recp recr rect reen reep reet reev rene renn reno rent reop reot repe repo repp repr rept rere rero rert rete reto retr rett reve revo revp rnco rncp rnnt rnot rnpv rntp rocc roce roco roen roer roet roev ronc rone rono ront roon roop roor root rope ropo rorc rore roro rort rotc rote rotn roto rotr rott rove rovo rpet rpoe rpon rppn rptn rrrr rtcc rtce rtee rttp rtve rv-c rver tccc tcep tcnn tcon tcov tcpo tctc teco tecr tect teec teen teer teet teev tenc tene tenn teno tenp tent teon teor tepe tepp ter- terc tere tern tero terp terr tete teto tetr tett tncc toce toco toee toen toer toet tone tonn tono toon toor toot top- tope topo topp topt topv torc tore torn toro torp torr tort torv totc tote toto totr tott tove tovo tpcp tper tpon tppp tppr tpte tptp tptr trcc tre- trec tree tren treo tret trev trno troc troe tron troo trop trot trpc trpe trpn trpp trpv trtc trte trtr ttcn ttcp tten tteo tter ttoe tton ttop tttt tver tvon tvro tvrr tvtv vcon vecc veen veep veer veet ven- vene venn veno vent veor vepe vepr ver- vere vern vero vert vete veto vetr veve vevo vnto voce voer voet vone vonn vont vooc voor voot vopt vor- vore voro vort vote voto votp vpon vpro vreo vret vrnn vroc vron vrot vrpn vrto vtec vten vtpr vver vvvv