-er -ey ddd dde ddo ddr dds ddt ddy de- ded dee deo der des det dey dod doe doo dor dos dot doy drd dre dro drr drs drt dry dsd dse dso dsr dss dst dsy dtd dte dto dtr dts dtt dty dy- dyd dye dyo dyr dys dyy ed- edd ede edo edr eds edt edy eed eee eeo eer ees eet eey eo- eod eoe eoo eor eos eot erd ere ero err ers ert ery es- esd ese eso esr ess est esy etd ete eto etr ets ett ety eyd eye eyo eyr eys eyt odd ode odo odr ods odt oed oee oeo oer oes oet oey oo- ood ooo oor oos oot or- ord ore oro orr ors ort ory os- osd ose oso osr oss ost ot- otd ote oto otr ots ott oyd oye oyo oys rdd rde rdo rdr rds rdt rdy re- red ree reo rer res ret rey rod roe roo ror ros rot roy rrd rrr rrs rrt rsd rse rso rsr rss rst rtd rte rto rtr rts rtt rty ry- ryd rye ryo ryr rys ryy sdd sde sdo sdr sds sdt sdy se- sed see seo ser ses set sey sod soe soo sor sos sot soy sr- srd sre sro srr srs srt sry ss- ssd sse sso ssr sss sst std ste sto str sts stt sty sy- syd sye syr sys syt tdd tde tdo tdr tds tdt tdy te- ted tee teo ter tes tet tey to- tod toe too tor tos tot toy trd tre tro trr trs trt try tsd tse tso tsr tss tst tsy ttd tte tto ttr tts ttt tty tyd tye tyo tyr tys tyt yde ydo yds ydt ydy yed yee yeo yer yes yet yey yod yoe yoo yor yos yot yoy yre yro yrs yrt yse yso ysr yss yst ysy ytd yte yto ytr yts ytt yye yys yyt yyy