-er -ey c-- ccc ccd cce cco ccp ccr ccs cct cdc cdd cde cdo cdp cdr cds cdt cdy ce- cec ced cee ceo cep cer ces cet cey co- coc cod coe coo cop cor cos cot coy cpc cpd cpe cpo cpp cpr cps cpt crc crd cre cro crp crr crs crt cry csc csd cse cso csp csr css cst csy ctc ctd cte cto ctp ctr cts ctt cty cyc cyd cye cyo cyp cyr cys cyt dcc dcd dce dco dcp dcr dcs dct ddc ddd dde ddo ddp ddr dds ddt ddy de- dec ded dee deo dep der des det dey doc dod doe doo dop dor dos dot doy dpc dpd dpe dpo dpp dpr dps dpt drc drd dre dro drp drr drs drt dry dsc dsd dse dso dsp dsr dss dst dsy dtc dtd dte dto dtp dtr dts dtt dty dy- dyc dyd dye dyo dyp dyr dys dyy ec- ecc ecd ece eco ecr ecs ect ed- edc edd ede edo edp edr eds edt edy eec eed eee eeo eep eer ees eet eey eo- eoc eod eoe eoo eop eor eos eot ep- epc epd epe epo epp epr eps ept erc erd ere ero erp err ers ert ery es- esc esd ese eso esp esr ess est esy etc etd ete eto etp etr ets ett ety eyc eyd eye eyo eyp eyr eys eyt oc- occ ocd oco ocp ocr ocs oct odc odd ode odo odp odr ods odt oec oed oee oeo oep oer oes oet oey oo- ooc ood ooo oop oor oos oot op- opc opd ope opo opp opr ops opt opy or- orc ord ore oro orp orr ors ort ory os- osc osd ose oso osp osr oss ost ot- otc otd ote oto otp otr ots ott oyd oye oyo oys p-p pcc pcd pce pco pcp pcr pcs pct pdc pdd pde pdo pdp pdr pds pdt pec ped pee peo pep per pes pet pey poc pod poe poo pop por pos pot poy ppc ppd ppe ppo ppp ppr pps ppt prc prd pre pro prp prr prs prt pry ps- psc psd pse pso psp psr pss pst psy pt- ptc ptd pte pto ptp ptr pts ptt pty py- pyc pyd pye pyo pyr pys pyt rcc rcd rce rco rcp rcr rcs rct rdc rdd rde rdo rdp rdr rds rdt rdy re- rec red ree reo rep rer res ret rey roc rod roe roo rop ror ros rot roy rpc rpd rpe rpo rpp rpr rps rpt rrc rrd rrp rrr rrs rrt rsc rsd rse rso rsp rsr rss rst rtc rtd rte rto rtp rtr rts rtt rty ry- ryc ryd rye ryo ryr rys ryy scc scd sce sco scp scr scs sct sdc sdd sde sdo sdp sdr sds sdt sdy se- sec sed see seo sep ser ses set sey soc sod soe soo sop sor sos sot soy spc spd spe spo spp spr sps spt spy sr- src srd sre sro srp srr srs srt sry ss- ssc ssd sse sso ssp ssr sss sst stc std ste sto stp str sts stt sty sy- syc syd sye syp syr sys syt tcc tcd tce tco tcp tcr tcs tct tdc tdd tde tdo tdp tdr tds tdt tdy te- tec ted tee teo tep ter tes tet tey to- toc tod toe too top tor tos tot toy tpc tpd tpe tpo tpp tpr tps tpt trc trd tre tro trp trr trs trt try tsc tsd tse tso tsp tsr tss tst tsy ttc ttd tte tto ttp ttr tts ttt tty tyc tyd tye tyo typ tyr tys tyt ycc ycd yce yco ycp ycs ycy yde ydo yds ydt ydy yec yed yee yeo yep yer yes yet yey yoc yod yoe yoo yop yor yos yot yoy ypd ypo yps yrc yre yro yrp yrs yrt ysc yse yso ysp ysr yss yst ysy ytc ytd yte yto ytp ytr yts ytt yyc yye yys yyt yyy