-er -ey -ic c-- ccc cce cci cck ccp ccr ce- cec cee cei cek cep cer cey ci- cic cie cii cik cip cir ckc cki cky cpc cpe cpi cpk cpp cpr crc cre cri crk crp crr cry cyc cye cyk cyp cyr ec- ecc ece eci eck ecr eec eee eek eep eer eey eic eie eii eik eip eir ekc eke eki ekp ekr eky ep- epc epe epi epp epr erc ere eri erk erp err ery eyc eye eyp eyr icc ice ici ick icp icr icy ie- iec iee iei iek iep ier iey iic iie iii iip iir ikc ike iki ikk ikr ipc ipe ipi ipp ipr ipy ir- irc ire iri irk irp irr iry iyc iye iyr iyy kcc kce kci kck kcp kcr ke- kec kee kei kek kep ker key kic kie kii kik kip kir kkc kke kki kkk kkp kkr kky kpc kpe kpi kpk kpp kpr krc kri krk krp krr kry kyc kye kyp kyr p-p pcc pce pci pck pcp pcr pec pee pei pek pep per pey pic pie pii pik pip pir pkc pke pki pkp pkr pky ppc ppe ppi ppk ppp ppr prc pre pri prk prp prr pry py- pyc pye pyk pyr rcc rce rci rcp rcr re- rec ree rei rek rep rer rey ric rie rii rik rip rir riy rkc rke rkk rkp rky rpc rpe rpi rpk rpp rpr rrc rri rrk rrp rrr ry- ryc rye ryk ryr ryy ycc yce yci ycp ycy yec yee yei yek yep yer yey yie yii yip yir yki ykk yrc yre yrp yyc yye yyy