-er -ey a-a a-b a-t aaa aab aae aag aar aat aau aay ab- aba abb abe abg abr abt abu aby aea aeb aee aeg aer aet aeu aey ag- aga agb age agg agr agt agu agy ar- ara arb are arg arr art aru ary at- ata atb ate atg atr att atu au- aua aub aue aug aur aut ay- aya aye ayr ayt ayu b-u baa bab bae bag bar bat bau bay bba bbb bbe bbg bbr bbt bbu bby be- bea beb bee beg ber bet beu bey bga bgb bge bgg bgr bgt bgu bra brb bre brg brr brt bru bry bta btb bte btg btr btt btu bty bua bub bue bug bur but buu buy by- bya bye byg byr byt byu eaa eab eae eag ear eat eau eba ebb ebe ebg ebr ebt ebu eby eea eeb eee eeg eer eet eey ega egb ege egg egr egt egu egy era erb ere erg err ert eru ery eta etb ete etg etr ett etu ety eu- eua eub eue eug eur eut eya eye eyr eyt gaa gab gae gag gar gat gau gay gba gbe gbg gbr gbt gbu gby ge- gea geb gee geg ger get geu gey gga ggb ggg ggr ggt ggu gra grb gre grg grr grt gru gry gta gtb gte gtg gtr gtt gtu gty gu- gua gub gue gug gur gut guu guy gy- gya gyb gye gyr ra- raa rab rae rag rar rat rau ray rba rbb rbe rbg rbr rbt rbu re- rea reb ree reg rer ret reu rey rga rgb rge rgg rgr rgt rra rrb rrg rrr rrt rru rta rtb rte rtg rtr rtt rtu rty rua rub rue rug rur rut ruu ruy ry- rya rye ryg ryr ryu ryy taa tab tae tag tar tat tau tay tba tbb tbe tbg tbr tbt tbu te- tea teb tee teg ter tet teu tey tga tgb tge tgg tgr tgt tgu tgy tra trb tre trg trr trt tru try tta ttb tte ttg ttr ttt ttu tty tua tub tue tug tur tut tuu tuy tya tye tyg tyr tyt ua- uaa uab uae uag uar uat uau uay uba ubb ube ubg ubr ubt ubu uby uea ueb uee ueg uer uet uey uga ugb uge ugg ugr ugt ugu ur- ura urb ure urg urr urt uru ury uta utb ute utr utt utu uty uua uue uug uur uut uuu uyu yaa yab yae yag yar yat yau yay ybe ybg ybr yby yea yeb yee yeg yer yet yey yga yra yre yrg yrt yru yta yte ytr ytt ytu yua yue yug yur yut yuu yuy yyb yye yyg yyt yyu yyy