-er -ey -ic c-- ccc cce cci cck ccn cco ccr ccs ce- cec cee cei cek cen ceo cer ces cey ci- cic cie cii cik cin cio cir cis ckc cki cko cks cky cn- cnc cne cni cnn cno cnr cns cny co- coc coe coi cok con coo cor cos coy crc cre cri crk crn cro crr crs cry csc cse csi csk csn cso csr css csy cyc cye cyk cyn cyo cyr cys ec- ecc ece eci eck ecn eco ecr ecs eec eee eek een eeo eer ees eey eic eie eii eik ein eio eir eis ekc eke eki eko ekr eks eky en- enc ene eni enk enn eno enr ens eny eo- eoc eoe eoi eok eon eoo eor eos erc ere eri erk ern ero err ers ery es- esc ese esi esk esn eso esr ess esy eyc eye eyn eyo eyr eys icc ice ici ick icn ico icr ics icy ie- iec iee iei iek ien ier ies iey iic iie iii iin iio iir iis ikc ike iki ikk iko ikr iks in- inc ine ini ink inn ino inr ins iny io- ioc ioe ioi ion ioo ior ios ir- irc ire iri irk irn iro irr irs iry is- isc ise isi isk isn iso isr iss isy iyc iye iyo iyr iys iyy kcc kce kci kck kcn kcr kcs ke- kec kee kei kek ken keo ker kes key kic kie kii kik kin kio kir kis kkc kke kki kkk kkn kkr kks kky kn- knc kne kni knk knn kno knr koc koe koi kok kon koo kor kos koy krc kri krk krn kro krr krs kry ksc kse ksi ksk ksn kso ksr kss kyc kye kyn kyo kyr kys n-i ncc nce nci nck ncn nco ncr ncs ne- nec nee nei nek nen neo ner nes ney nic nie nii nik nin nio nir nis nkc nke nki nkk nkn nko nkr nks nky nnc nne nni nnk nnn nno nns no- noc noe noi nok non noo nor nos noy nrc nre nri nrk nrn nro nrr nrs nry nsc nse nsi nsk nsn nso nsr nss nsy nyc nye nyk nyn nyo nys nyy o-i oc- occ oci ock ocn oco ocr ocs oec oee oei oen oeo oer oes oey oic oie oii oik oin oio oir ois okc oke oki okk oko okr oks on- onc one oni onk onn ono onr ons ony oo- ooc ooi ook oon ooo oor oos or- orc ore ori ork orn oro orr ors ory os- osc ose osi osk osn oso osr oss oye oyi oyo oys rcc rce rci rcn rco rcr rcs re- rec ree rei rek ren reo rer res rey ric rie rii rik rin rio rir ris riy rkc rke rkk rko rks rky rnc rni rnn rno rnr rns rny roc roe roi rok ron roo ror ros roy rrc rri rrk rrn rrr rrs rsc rse rsi rsk rsn rso rsr rss ry- ryc rye ryk ryn ryo ryr rys ryy scc sce sci sck scn sco scr scs se- sec see sei sek sen seo ser ses sey sic sie sii sik sin sio sir sis sk- skc ske ski skk sko skr sks sky snc sne sni snk snn sno snr sns sny soc soe soi sok son soo sor sos soy sr- src sre sri srk srn sro srr srs sry ss- ssc sse ssi ssk ssn sso ssr sss sy- syc sye syi syk syn syr sys ycc yce yci yco ycs ycy yec yee yei yek yen yeo yer yes yey yie yii yin yio yir yis yki ykk ykn yne ynk ynn yns yny yoc yoe yoi yok yon yoo yor yos yoy yrc yre yrn yro yrs ysc yse ysi ysk yso ysr yss ysy yyc yye yys yyy