-er -ey ddd dde ddf ddk ddn ddo ddr ddt ddy de- ded dee def dek den deo der det dey dfd dfe dff dfk dfn dfo dfr dft dke dkk dko dkr dkt dnd dne dnf dnk dnn dno dnr dnt dny dod doe dof dok don doo dor dot doy drd dre drk drn dro drr drt dry dtd dte dtf dtk dtn dto dtr dtt dty dy- dyd dye dyk dyn dyo dyr dyy ed- edd ede edf edk edn edo edr edt edy eed eee eef eek een eeo eer eet eey ef- efd efe eff efo efr eft ekd eke ekf eko ekr ekt eky en- end ene enf enk enn eno enr ent eny eo- eod eoe eof eok eon eoo eor eot erd ere erf erk ern ero err ert ery etd ete etf etk etn eto etr ett ety eyd eye eyn eyo eyr eyt fdd fde fdf fdk fdn fdo fdr fdt fed fee fef fek fen feo fer fet fey ffd ffe fff ffk ffn ffo ffr fft ffy fkf fkk fkt fnd fne fnf fnk fnn fnr fnt foe fof fok fon foo for fot foy frd fre frf frk frn fro frr frt fry ftd fte ftf ftk ftn fto ftr ftt fty fy- fye fyk fyn fyo k-t kde kdf kdk kdo kdr kdt kdy ke- ked kee kef kek ken keo ker ket key kfd kff kfo kke kkk kkn kkr kkt kky kn- knd kne knf knk knn kno knr knt kod koe kof kok kon koo kor kot koy krd krf krk krn kro krr krt kry kte ktf ktk ktn kto ktr ktt kyd kye kyn kyo kyr kyt ndd nde ndf ndk ndn ndo ndr ndt ndy ne- ned nee nef nek nen neo ner net ney nfd nfe nff nfk nfn nfo nfr nft nke nkf nkk nkn nko nkr nkt nky nne nnf nnk nnn nno nnt no- nod noe nof nok non noo nor not noy nrd nre nrf nrk nrn nro nrr nrt nry ntd nte ntf ntk ntn nto ntr ntt nyd nye nyf nyk nyn nyo nyt nyy odd ode odf odn odo odr odt oed oee oef oen oeo oer oet oey of- ofd ofe off ofn ofo ofr oft okd oke okk oko okr on- ond one onf onk onn ono onr ont ony oo- ood oof ook oon ooo oor oot or- ord ore orf ork orn oro orr ort ory ot- otd ote otf otk otn oto otr ott oyd oye oyo rdd rde rdf rdn rdo rdr rdt rdy re- red ree ref rek ren reo rer ret rey rfd rfe rff rfk rfn rfo rfr rft rke rkf rkk rko rkt rky rnd rnn rno rnr rnt rny rod roe rof rok ron roo ror rot roy rrd rrf rrk rrn rrr rrt rtd rte rtf rtk rtn rto rtr rtt rty ry- ryd rye ryf ryk ryn ryo ryr ryy tdd tde tdf tdk tdn tdo tdr tdt tdy te- ted tee tef tek ten teo ter tet tey tfd tfe tff tfk tfn tfo tfr tft tke tkk tko tkr tkt tky tnd tne tnf tnk tnn tno tnr tnt to- tod toe tof tok ton too tor tot toy trd tre trf trk trn tro trr trt try ttd tte ttf ttk ttn tto ttr ttt tty tyd tye tyf tyn tyo tyr tyt yde ydn ydo ydt ydy yed yee yef yek yen yeo yer yet yey yfd yfe yff yfr yft ykk ykn ynd yne ynk ynn yny yod yoe yof yok yon yoo yor yot yoy yre yrf yrn yro yrt ytd yte ytf ytk ytn yto ytr ytt yye yyf yyt yyy