-er -ey a-a a-b a-t aaa aab aae aak aar aas aat aay ab- aba abb abe abk abr abs abt aby aea aeb aee aek aer aes aet aey aka akb ake akk akr aks ar- ara arb are ark arr ars art ary as- asa asb ase ask asr ass ast asy at- ata atb ate atr ats att ay- aya aye ayk ayr ays ayt baa bab bae bak bar bas bat bay bba bbb bbe bbk bbr bbs bbt bby be- bea beb bee bek ber bes bet bey bka bkb bke bkk bkr bks bkt bra brb bre brk brr brs brt bry bsa bsb bse bsk bsr bss bst bsy bta btb bte btk btr bts btt bty by- bya bye byk byr bys byt eaa eab eae eak ear eas eat eba ebb ebe ebk ebr ebs ebt eby eea eeb eee eek eer ees eet eey eka ekb eke ekr eks ekt eky era erb ere erk err ers ert ery es- esa esb ese esk esr ess est esy eta etb ete etk etr ets ett ety eya eye eyr eys eyt k-t ka- kaa kab kae kak kar kas kat kay kba kbb kbe kbk kbr kbs ke- kea keb kee kek ker kes ket key kkb kke kkk kkr kks kkt kky kra krk krr krs krt kry ksa ksb kse ksk ksr kss kst kta ktb kte ktk ktr kts ktt kya kye kyr kys kyt ra- raa rab rae rak rar ras rat ray rba rbb rbe rbk rbr rbs rbt re- rea reb ree rek rer res ret rey rkb rke rkk rks rkt rky rra rrb rrk rrr rrs rrt rsa rsb rse rsk rsr rss rst rta rtb rte rtk rtr rts rtt rty ry- rya rye ryk ryr rys ryy saa sab sae sak sar sas sat say sba sbb sbe sbk sbr sbs sbt sby se- sea seb see sek ser ses set sey sk- ska skb ske skk skr sks skt sky sr- sra srb sre srk srr srs srt sry ss- ssa ssb sse ssk ssr sss sst sta stb ste stk str sts stt sty sy- sya syb sye syk syr sys syt taa tab tae tak tar tas tat tay tba tbb tbe tbk tbr tbs tbt te- tea teb tee tek ter tes tet tey tka tkb tke tkk tkr tks tkt tky tra trb tre trk trr trs trt try tsa tsb tse tsk tsr tss tst tsy tta ttb tte ttk ttr tts ttt tty tya tye tyr tys tyt yaa yab yae yak yar yas yat yay ybe ybr ybs yby yea yeb yee yek yer yes yet yey yka ykk yra yre yrs yrt ysa ysb yse ysk ysr yss yst ysy yta yte ytk ytr yts ytt yyb yye yys yyt yyy