-er -ey ddd dde ddi ddn ddr ddt ddx ddy de- ded dee dei den der det dex dey di- did die dii din dir dit dix diy dnd dne dni dnn dnr dnt dny drd dre dri drn drr drt drx dry dtd dte dti dtn dtr dtt dtx dty dxd dxi dxn dxr dxt dxx dy- dyd dye dyn dyr dyy ed- edd ede edi edn edr edt edx edy eed eee een eer eet eex eey eid eie eii ein eir eit eix en- end ene eni enn enr ent eny erd ere eri ern err ert ery etd ete eti etn etr ett etx ety ex- exd exe exi exr ext exx exy eyd eye eyn eyr eyt i-d idd ide idi idn idr idt idx idy ie- ied iee iei ien ier iet iex iey iid iie iii iin iir iit iix in- ind ine ini inn inr int inx iny ir- ird ire iri irn irr irt irx iry itd ite iti itn itt itx ity ixe ixi ixn ixy iye iyr iyt iyy n-i ndd nde ndi ndn ndr ndt ndy ne- ned nee nei nen ner net nex ney nid nie nii nin nir nit nix nne nni nnn nnt nrd nre nri nrn nrr nrt nrx nry ntd nte nti ntn ntr ntt ntx nxd nxt nyd nye nyn nyt nyx nyy rdd rde rdi rdn rdr rdt rdx rdy re- red ree rei ren rer ret rex rey rid rie rii rin rir rit rix riy rnd rni rnn rnr rnt rny rrd rri rrn rrr rrt rtd rte rti rtn rtr rtt rtx rty rxr ry- ryd rye ryn ryr ryy t-x tdd tde tdi tdn tdr tdt tdx tdy te- ted tee tei ten ter tet tex tey tid tie tii tin tir tit tix tiy tnd tne tni tnn tnr tnt tnx trd tre tri trn trr trt trx try ttd tte tti ttn ttr ttt ttx tty txe txi txn txt tyd tye tyn tyr tyt xde xdi xdr xdt xed xee xen xer xet xex xie xii xin xit xix xrd xrt xrx xry xti xtr xtx xty xxi xxx xxy xyr xyy yde ydn ydt ydy yed yee yei yen yer yet yex yey yid yie yii yin yir yit ynd yne ynn yny yre yrn yrt ytd yte ytn ytr ytt yxe yxy yye yyt yyy