-er -ey ddd dde ddi ddr dds ddt ddy de- ded dee dei der des det dey di- did die dii dir dis dit diy drd dre dri drr drs drt dry dsd dse dsi dsr dss dst dsy dtd dte dti dtr dts dtt dty dy- dyd dye dyr dys dyy ed- edd ede edi edr eds edt edy eed eee eer ees eet eey eid eie eii eir eis eit erd ere eri err ers ert ery es- esd ese esi esr ess est esy etd ete eti etr ets ett ety eyd eye eyr eys eyt i-d idd ide idi idr ids idt idy ie- ied iee iei ier ies iet iey iid iie iii iir iis iit ir- ird ire iri irr irs irt iry is- isd ise isi isr iss ist isy itd ite iti its itt ity iye iyr iys iyt iyy rdd rde rdi rdr rds rdt rdy re- red ree rei rer res ret rey rid rie rii rir ris rit riy rrd rri rrr rrs rrt rsd rse rsi rsr rss rst rtd rte rti rtr rts rtt rty ry- ryd rye ryr rys ryy sdd sde sdi sdr sds sdt sdy se- sed see sei ser ses set sey sid sie sii sir sis sit sr- srd sre sri srr srs srt sry ss- ssd sse ssi ssr sss sst std ste sti str sts stt sty sy- syd sye syi syr sys syt tdd tde tdi tdr tds tdt tdy te- ted tee tei ter tes tet tey tid tie tii tir tis tit tiy trd tre tri trr trs trt try tsd tse tsi tsr tss tst tsy ttd tte tti ttr tts ttt tty tyd tye tyr tys tyt yde yds ydt ydy yed yee yei yer yes yet yey yid yie yii yir yis yit yre yrs yrt yse ysi ysr yss yst ysy ytd yte ytr yts ytt yye yys yyt yyy