-er -ey ddd dde ddi ddk ddo ddp ddr dds ddy de- ded dee dei dek deo dep der des dey di- did die dii dik dio dip dir dis diy dke dki dkk dko dkp dkr dks dod doe doi dok doo dop dor dos doy dpd dpe dpi dpk dpo dpp dpr dps drd dre dri drk dro drp drr drs dry dsd dse dsi dsk dso dsp dsr dss dsy dy- dyd dye dyk dyo dyp dyr dys dyy ed- edd ede edi edk edo edp edr eds edy eed eee eek eeo eep eer ees eey eid eie eii eik eio eip eir eis ekd eke eki eko ekp ekr eks eky eo- eod eoe eoi eok eoo eop eor eos ep- epd epe epi epo epp epr eps erd ere eri erk ero erp err ers ery es- esd ese esi esk eso esp esr ess esy eyd eye eyo eyp eyr eys i-d idd ide idi idk ido idp idr ids idy ie- ied iee iei iek iep ier ies iey iid iie iii iio iip iir iis ike iki ikk iko ikr iks io- iod ioe ioi ioo iop ior ios ipd ipe ipi ipo ipp ipr ips ipy ir- ird ire iri irk iro irp irr irs iry is- isd ise isi isk iso isp isr iss isy iye iyo iyr iys iyy kde kdk kdo kdp kdr kds kdy ke- ked kee kei kek keo kep ker kes key kid kie kii kik kio kip kir kis kke kki kkk kkp kkr kks kky kod koe koi kok koo kop kor kos koy kpd kpe kpi kpk kpo kpp kpr kps krd kri krk kro krp krr krs kry ksd kse ksi ksk kso ksp ksr kss kyd kye kyo kyp kyr kys o-i odd ode odi odo odp odr ods oed oee oei oeo oep oer oes oey oid oie oii oik oio oip oir ois okd oke oki okk oko okp okr oks oo- ood ooi ook ooo oop oor oos op- opd ope opi opk opo opp opr ops opy or- ord ore ori ork oro orp orr ors ory os- osd ose osi osk oso osp osr oss oyd oye oyi oyo oys p-p pdd pde pdi pdk pdo pdp pdr pds ped pee pei pek peo pep per pes pey pid pie pii pik pio pip pir pis pkd pke pki pko pkp pkr pks pky pod poe poi pok poo pop por pos poy ppd ppe ppi ppk ppo ppp ppr pps prd pre pri prk pro prp prr prs pry ps- psd pse psi psk pso psp psr pss psy py- pyd pye pyk pyo pyr pys rdd rde rdi rdo rdp rdr rds rdy re- red ree rei rek reo rep rer res rey rid rie rii rik rio rip rir ris riy rke rkk rko rkp rks rky rod roe roi rok roo rop ror ros roy rpd rpe rpi rpk rpo rpp rpr rps rrd rri rrk rrp rrr rrs rsd rse rsi rsk rso rsp rsr rss ry- ryd rye ryk ryo ryr rys ryy sdd sde sdi sdk sdo sdp sdr sds sdy se- sed see sei sek seo sep ser ses sey sid sie sii sik sio sip sir sis sk- skd ske ski skk sko skp skr sks sky sod soe soi sok soo sop sor sos soy spd spe spi spk spo spp spr sps spy sr- srd sre sri srk sro srp srr srs sry ss- ssd sse ssi ssk sso ssp ssr sss sy- syd sye syi syk syp syr sys yde ydo yds ydy yed yee yei yek yeo yep yer yes yey yid yie yii yio yip yir yis yki ykk yod yoe yoi yok yoo yop yor yos yoy ypd ypo yps yre yro yrp yrs yse ysi ysk yso ysp ysr yss ysy yye yys yyy