-er -ey ddd dde ddi ddk ddr dds ddy de- ded dee dei dek der des dev dey di- did die dii dik dir dis div diy dke dki dkk dkr dks drd dre dri drk drr drs drv dry dsd dse dsi dsk dsr dss dsv dsy dvd dve dvi dvk dvr dvs dy- dyd dye dyk dyr dys dyy ed- edd ede edi edk edr eds edy eed eee eek eer ees eev eey eid eie eii eik eir eis eiv ekd eke eki ekr eks ekv eky erd ere eri erk err ers erv ery es- esd ese esi esk esr ess esv esy evd eve evi evr evs evv evy eyd eye eyr eys i-d i-v idd ide idi idk idr ids idv idy ie- ied iee iei iek ier ies iev iey iid iie iii iir iis ike iki ikk ikr iks ikv ir- ird ire iri irk irr irs irv iry is- isd ise isi isk isr iss isv isy ivd ive ivi ivr ivs ivv ivy iye iyr iys iyy kde kdk kdr kds kdy ke- ked kee kei kek ker kes kev key kid kie kii kik kir kis kiv kke kki kkk kkr kks kkv kky krd kri krk krr krs krv kry ksd kse ksi ksk ksr kss ksv kvi kvk kvr kvs kvv kyd kye kyr kys rdd rde rdi rdr rds rdv rdy re- red ree rei rek rer res rev rey rid rie rii rik rir ris riv riy rke rkk rks rkv rky rrd rri rrk rrr rrs rsd rse rsi rsk rsr rss rsv rvd rve rvi rvr rvs rvv rvy ry- ryd rye ryk ryr rys ryy sdd sde sdi sdk sdr sds sdv sdy se- sed see sei sek ser ses sev sey sid sie sii sik sir sis siv sk- skd ske ski skk skr sks sky sr- srd sre sri srk srr srs srv sry ss- ssd sse ssi ssk ssr sss ssv svd sve svi svk svr svs svv svy sy- syd sye syi syk syr sys v-e vdd vde vdi vdk vdr vds vdv ved vee vei vek ver ves vey vi- vid vie vii vik vir vis viv viy vrd vre vri vrk vrr vrs vry vsd vse vsi vsk vsr vss vsv vvi vvr vvs vvv vyd vye yde yds ydy yed yee yei yek yer yes yev yey yid yie yii yir yis yki ykk yre yrs yse ysi ysk ysr yss ysy yve yvi yvr yvy yye yys yyy