-er -ey b-u bbb bbd bbe bbn bbr bbt bbu bby bdb bdd bde bdr bdt bdu bdy be- beb bed bee ben ber bet beu bey bnb bnd bne bnn bnr bnt bnu brb brd bre brn brr brt bru bry btb btd bte btn btr btt btu bty bub bud bue bun bur but buu buy by- byd bye byn byr byt byu dbb dbd dbe dbn dbr dbt dbu dby ddb ddd dde ddn ddr ddt ddu ddy de- deb ded dee den der det deu dey dnb dnd dne dnn dnr dnt dny drb drd dre drn drr drt dru dry dtb dtd dte dtn dtr dtt dtu dty dub dud due dun dur dut duy dy- dyb dyd dye dyn dyr dyu dyy ebb ebd ebe ebn ebr ebt ebu eby ed- edb edd ede edn edr edt edu edy eeb eed eee een eer eet eey en- enb end ene enn enr ent enu eny erb erd ere ern err ert eru ery etb etd ete etn etr ett etu ety eu- eub eud eue eun eur eut eyd eye eyn eyr eyt nbb nbd nbe nbn nbr nbt nbu ndb ndd nde ndn ndr ndt ndu ndy ne- neb ned nee nen ner net neu ney nnb nne nnn nnt nnu nrb nrd nre nrn nrr nrt nru nry ntb ntd nte ntn ntr ntt ntu nub nud nue nun nur nut nuu nuy nyd nye nyn nyt nyu nyy rbb rbd rbe rbn rbr rbt rbu rdb rdd rde rdn rdr rdt rdu rdy re- reb red ree ren rer ret reu rey rnb rnd rnn rnr rnt rnu rny rrb rrd rrn rrr rrt rru rtb rtd rte rtn rtr rtt rtu rty rub rud rue run rur rut ruu ruy ry- ryd rye ryn ryr ryu ryy tbb tbd tbe tbn tbr tbt tbu tdb tdd tde tdn tdr tdt tdu tdy te- teb ted tee ten ter tet teu tey tnb tnd tne tnn tnr tnt trb trd tre trn trr trt tru try ttb ttd tte ttn ttr ttt ttu tty tub tud tue tun tur tut tuu tuy tyd tye tyn tyr tyt ubb ube ubn ubr ubt ubu uby udb udd ude udn udr udt udu ueb ued uee uen uer uet uey un- unb und une unn unr unt unu uny ur- urb urd ure urn urr urt uru ury utb utd ute utn utr utt utu uty uue uun uur uut uuu uyu ybe ybr yby yde ydn ydt ydy yeb yed yee yen yer yet yey ynd yne ynn ynu yny yre yrn yrt yru ytd yte ytn ytr ytt ytu yud yue yun yur yut yuu yuy yyb yye yyt yyu yyy