-er -ey c-- ccc cce cck ccn cco ccr ce- cec cee cek cen ceo cer cey ckc cko cky cn- cnc cne cnn cno cnr cny co- coc coe cok con coo cor coy crc cre crk crn cro crr cry cyc cye cyk cyn cyo cyr ec- ecc ece eck ecn eco ecr eec eee eek een eeo eer eey ekc eke eko ekr eky en- enc ene enk enn eno enr eny eo- eoc eoe eok eon eoo eor erc ere erk ern ero err ery eyc eye eyn eyo eyr kcc kce kck kcn kcr ke- kec kee kek ken keo ker key kkc kke kkk kkn kkr kky kn- knc kne knk knn kno knr koc koe kok kon koo kor koy krc krk krn kro krr kry kyc kye kyn kyo kyr ncc nce nck ncn nco ncr ne- nec nee nek nen neo ner ney nkc nke nkk nkn nko nkr nky nnc nne nnk nnn nno no- noc noe nok non noo nor noy nrc nre nrk nrn nro nrr nry nyc nye nyk nyn nyo nyy oc- occ ock ocn oco ocr oec oee oen oeo oer oey okc oke okk oko okr on- onc one onk onn ono onr ony oo- ooc ook oon ooo oor or- orc ore ork orn oro orr ory oye oyo rcc rce rcn rco rcr re- rec ree rek ren reo rer rey rkc rke rkk rko rky rnc rnn rno rnr rny roc roe rok ron roo ror roy rrc rrk rrn rrr ry- ryc rye ryk ryn ryo ryr ryy ycc yce yco ycy yec yee yek yen yeo yer yey ykk ykn yne ynk ynn yny yoc yoe yok yon yoo yor yoy yrc yre yrn yro yyc yye yyy