-er -ey -ic c-- ccc cce cci cck ccm cco ccr ce- cec cee cei cek cem ceo cer cey ci- cic cie cii cik cim cio cir ckc cki ckm cko cky cmc cme cmi cmk cmm cmo cmr cmy co- coc coe coi cok com coo cor coy crc cre cri crk crm cro crr cry cyc cye cyk cym cyo cyr ec- ecc ece eci eck ecm eco ecr eec eee eek eem eeo eer eey eic eie eii eik eim eio eir ekc eke eki eko ekr eky em- emc eme emi emk emm emo emr eo- eoc eoe eoi eok eom eoo eor erc ere eri erk erm ero err ery eyc eye eym eyo eyr icc ice ici ick icm ico icr icy ie- iec iee iei iek iem ier iey iic iie iii iim iio iir ikc ike iki ikk iko ikr im- imc ime imi imm imo imy io- ioc ioe ioi iom ioo ior ir- irc ire iri irk irm iro irr iry iyc iye iym iyo iyr iyy kcc kce kci kck kcm kcr ke- kec kee kei kek kem keo ker key kic kie kii kik kim kio kir kkc kke kki kkk kkm kkr kky kmc kme kmi kmk kmm kmo koc koe koi kok kom koo kor koy krc kri krk kro krr kry kyc kye kym kyo kyr m-o m-r mc- mcc mce mci mck mcm mco mcr mec mee mei mek mem meo mer mey mi- mic mie mii mik mim mio mir miy mkc mke mkk mkm mko mkr mky mmc mme mmi mmk mmm mmo mmr moc moe moi mok mom moo mor moy mrc mre mri mrk mrm mro mrr mry my- myc mye myk mym myo myr o-i oc- occ oci ock ocm oco ocr oec oee oei oem oeo oer oey oic oie oii oik oim oio oir okc oke oki okk oko okr om- omc ome omi omm omo omr omy oo- ooc ooi ook oom ooo oor or- orc ore ori ork orm oro orr ory oye oyi oyo rcc rce rci rcm rco rcr re- rec ree rei rek rem reo rer rey ric rie rii rik rim rio rir riy rkc rke rkk rkm rko rky rmc rme rmi rmm rmo rmr roc roe roi rok rom roo ror roy rrc rri rrk rrm rrr ry- ryc rye ryk rym ryo ryr ryy ycc yce yci yco ycy yec yee yei yek yem yeo yer yey yie yii yim yio yir yki ykk ykm ymc yme ymi ymm ymo yoc yoe yoi yok yom yoo yor yoy yrc yre yro yyc yye yyy