-ene -yne cccc cccf cccv ccee ccfc ccff ccnc ccne ccnf ccnr ccny ccrc ccre ccrf cec- cece ceec cef- cefc cefn cen- cene ceny cer- cerc cere cerf cern cery cevy cfcf cfcn cfcy cffr cfnr cfre cfrn cfry cfyn cnrc cnrr crcc crce crcr cre- crec cree cren crfc crne cry- cryn cvcc cven cver cvfr cvrr cyc- cycc cyen cyfe cyn- cyne cyre cyve cyy- cyyc cyyn eccc ecce ecef ecfc ecfr ecne ecrc ecrf ecrr ecrv eeee eefe eefn eeny eerc eery eevn efen effy en-v ence ency enee ener eney ennc enne enny enry envy enye ercc erce erec eren erer erev erfc erne errc erre erve eryc erye even ever evey evre evry eyec eyen eyer eyey eyne eyre eyry eyyr fccf fece feen feer fefc fefe feff fene fenn feny ferc fere fern ferr ferv fery feve fevr feyn feyr ffcc ffee ffff ffrr fr-v frcc frcn free fren frey frfc frye fvey fyce fyen fyfe fyne fynn fyre fyry fyve nccc nccf nccn nccr ncec ncee ncef ncen ncer ncfc ncfe ncnc ncrc ncre necc nece necr necy neef neen neer neev nefe neff nene nerc nere nerf nerr nerv nery neve nevy neye neyf neyn nfer nfff nfyc nnnn nren nrfc nrrc nvcc nvfc nvfr nycc nyce nycy nyen nyer nyne nyny nyrf rccc rcfc rcnr rcvr rcyc recc rece recr recy reef reen reev refe reff refn refr rene renn reny rere rery reve revy reye reyn rfef rffc rrfc rrrr rv-c rver ryen ryfe ryff ryne rynn ryyf vecc veen veer ven- vene venn veny ver- vere vern very veve vevy veye veyn veyr vfcc vref vrnn vver vvvv vyce vyer vyfe vyff vyne vyny vyre yccc ycee yeen yeer yefe yeff yenc yene yere yern yerr yery yeve yeye yeyr ynce ynne yren yrne yryn yven yver yyfe yyff yyyy