-ene -one -yne cccc ccee ccnc ccne ccnr ccny ccoc ccrc ccre cec- cece ceco ceec cen- cene ceno ceny ceor cer- cerc cere cern cero cery cnco cnrc cnrr coce coco coen con- conc cone conn cono cony coon cor- corc core corn coro corr cory coyn coyo coyr crcc crce crcr cre- crec cree cren creo crne croc croe cron croo cror croy cry- cryn cryo cyc- cycc cyen cyn- cyne cyno cyon cyre cyy- cyyc cyyn eccc ecce ecco ecne eco- econ ecrc ecrr eeee eeny eeoc eerc eero eery ence enco ency enee eneo ener eney ennc enne enny eno- enoc enoe enon enoy enry enye enyo eone eore ercc erce erec eren erer erne erno eroc eroe eron eroo errc erre erro eryc erye eyec eyen eyer eyey eyne eyre eyry eyyr nccc nccn nccr ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre necc nece neco necr necy neen neer nene neno neo- neoc neon neoo nerc nere nero nerr nery neye neyn neyo nnnn noce noco noer non- none nonn nono noo- noon nooo noor nor- norc nore norn noro norr nory noye noyo nren nroc nron nrrc nycc nyce nyco nycy nyen nyer nyne nyny nyon nyro o-eo occc occn oce ocee ocon ocre ocro ocrr oec- oecc oeec oen- oeno oere oeye oeyo onc- once onco one- onec onee oneo oner oney onne onno onon onor onoy oocr ooer oone oooo oore oory orce orco ore- orec oren oreo orer orey ornc orne orno orny oro- oroe oron oror oroy orro orry oyce oyee oyen oyer oyne oyon oyre rccc rcnr rcon rcyc recc rece recr recy reen rene renn reno reny rere rero rery reye reyn rnco rocc roce roco roen roer roey ronc rone rono rony roon roor rorc rore roro rory roye royn rrrr ryen ryne rynn ryon yccc ycee yeen yeer yenc yene yeon yere yern yero yerr yery yeye yeyo yeyr ynce ynne ynon yoen yone yono yoon yore yorn yoro yory yoye yoyn yoyo yren yrne yron yryn yyyy