-er -ey ddd dde ddo ddp ddr ddt ddx ddy de- ded dee deo dep der det dex dey dod doe doo dop dor dot dox doy dpd dpe dpo dpp dpr dpt drd dre dro drp drr drt drx dry dtd dte dto dtp dtr dtt dtx dty dxd dxo dxp dxr dxt dxx dy- dyd dye dyo dyp dyr dyy ed- edd ede edo edp edr edt edx edy eed eee eeo eep eer eet eex eey eo- eod eoe eoo eop eor eot ep- epd epe epo epp epr ept epx erd ere ero erp err ert ery etd ete eto etp etr ett etx ety ex- exd exe exo exp exr ext exx exy eyd eye eyo eyp eyr eyt odd ode odo odp odr odt oed oee oeo oep oer oet oex oey oo- ood ooo oop oor oot oox op- opd ope opo opp opr opt opx opy or- ord ore oro orp orr ort orx ory ot- otd ote oto otp otr ott ox- oxo oxt oxx oxy oyd oye oyo p-p pdd pde pdo pdp pdr pdt pdx ped pee peo pep per pet pex pey pod poe poo pop por pot pox poy ppd ppe ppo ppp ppr ppt ppx prd pre pro prp prr prt prx pry pt- ptd pte pto ptp ptr ptt ptx pty pxe pxr pxt py- pyd pye pyo pyr pyt pyx rdd rde rdo rdp rdr rdt rdx rdy re- red ree reo rep rer ret rex rey rod roe roo rop ror rot rox roy rpd rpe rpo rpp rpr rpt rpx rrd rrp rrr rrt rtd rte rto rtp rtr rtt rtx rty rxp rxr ry- ryd rye ryo ryr ryy t-x tdd tde tdo tdp tdr tdt tdx tdy te- ted tee teo tep ter tet tex tey to- tod toe too top tor tot tox toy tpd tpe tpo tpp tpr tpt tpx trd tre tro trp trr trt trx try ttd tte tto ttp ttr ttt ttx tty txe txt tyd tye tyo typ tyr tyt xde xdr xdt xed xee xep xer xet xex xod xoo xop xor xot xox xpd xpe xpo xpp xpt xrd xrt xrx xry xtp xtr xtx xty xxo xxp xxx xxy xyp xyr xyy yde ydo ydt ydy yed yee yeo yep yer yet yex yey yod yoe yoo yop yor yot yox yoy ypd ypo yre yro yrp yrt ytd yte yto ytp ytr ytt yxe yxy yye yyt yyy