-er -ey -ic c-- ccc cce cci cck ccr ccu ce- cec cee cei cek cer ceu cey ci- cic cie cii cik cir ciu ckc cki cky crc cre cri crk crr cru cry cuc cue cui cuk cur cuu cuy cyc cye cyk cyr ec- ecc ece eci eck ecr ecu eec eee eek eer eey eic eie eii eik eir eiu ekc eke eki ekr eku eky erc ere eri erk err eru ery eu- euc eue eui eur eyc eye eyr icc ice ici ick icr icu icy ie- iec iee iei iek ier iey iic iie iii iir iiu ikc ike iki ikk ikr iku ir- irc ire iri irk irr iru iry iu- iuc iue iui iur iyc iye iyr iyy kcc kce kci kck kcr kcu ke- kec kee kei kek ker key kic kie kii kik kir kiu kkc kke kki kkk kkr kku kky krc kri krk krr kru kry kuc kue kui kuk kur kuu kuy kyc kye kyr kyu rcc rce rci rcr rcu re- rec ree rei rek rer reu rey ric rie rii rik rir riy rkc rke rkk rku rky rrc rri rrk rrr rru ruc rue rui ruk rur ruu ruy ry- ryc rye ryk ryr ryu ryy ucc uce uci uck ucr ucu uec uee uei uer uey uic uie uii uir uiu ukc uke uki ukk ukr uku ur- urc ure uri urk urr uru ury uuc uue uur uuu uyc uyi uyu ycc yce yci ycu ycy yec yee yei yek yer yey yie yii yir yki ykk yrc yre yru yue yui yuk yur yuu yuy yyc yye yyu yyy