-er -ey -ic c-- ccc cce cci cck cco ccr ccv ce- cec cee cei cek ceo cer cev cey ci- cic cie cii cik cio cir civ ckc cki cko cky co- coc coe coi cok coo cor cov coy crc cre cri crk cro crr crv cry cvc cve cvi cvk cvo cvr cvv cyc cye cyk cyo cyr ec- ecc ece eci eck eco ecr ecv eec eee eek eeo eer eev eey eic eie eii eik eio eir eiv ekc eke eki eko ekr ekv eky eo- eoc eoe eoi eok eoo eor erc ere eri erk ero err erv ery evc eve evi evo evr evv evy eyc eye eyo eyr i-v icc ice ici ick ico icr icv icy ie- iec iee iei iek ier iev iey iic iie iii iio iir ikc ike iki ikk iko ikr ikv io- ioc ioe ioi ioo ior iov ir- irc ire iri irk iro irr irv iry ivc ive ivi ivo ivr ivv ivy iyc iye iyo iyr iyy kcc kce kci kck kcr ke- kec kee kei kek keo ker kev key kic kie kii kik kio kir kiv kkc kke kki kkk kkr kkv kky koc koe koi kok koo kor koy krc kri krk kro krr krv kry kvi kvk kvo kvr kvv kyc kye kyo kyr o-i oc- occ oci ock oco ocr ocv oec oee oei oeo oer oey oic oie oii oik oio oir oiv okc oke oki okk oko okr oo- ooc ooi ook ooo oor oov or- orc ore ori ork oro orr orv ory ov- ovc ove ovi ovo ovv oye oyi oyo rcc rce rci rco rcr rcv re- rec ree rei rek reo rer rev rey ric rie rii rik rio rir riv riy rkc rke rkk rko rkv rky roc roe roi rok roo ror rov roy rrc rri rrk rrr rvc rve rvi rvo rvr rvv rvy ry- ryc rye ryk ryo ryr ryy v-e vcc vce vci vco vcr vcy vec vee vei vek veo ver vey vi- vic vie vii vik vio vir viv viy voc voe voi vok voo vor vov voy vrc vre vri vrk vrr vry vvc vvi vvo vvr vvv vye ycc yce yci yco ycv ycy yec yee yei yek yeo yer yev yey yie yii yio yir yki ykk yoc yoe yoi yok yoo yor yoy yrc yre yro yve yvi yvo yvr yvy yyc yye yyy