-er -ey bbb bbe bbi bbn bbr bbs bbt bby be- beb bee bei ben ber bes bet bey bi- bib bie bii bin bir bis bit biy bnb bne bni bnn bnr bns bnt brb bre bri brn brr brs brt bry bsb bse bsi bsn bsr bss bst bsy btb bte bti btn btr bts btt bty by- bye byi byn byr bys byt ebb ebe ebi ebn ebr ebs ebt eby eeb eee een eer ees eet eey eib eie eii ein eir eis eit en- enb ene eni enn enr ens ent eny erb ere eri ern err ers ert ery es- esb ese esi esn esr ess est esy etb ete eti etn etr ets ett ety eye eyn eyr eys eyt ibb ibe ibi ibn ibr ibs ibt iby ie- iee iei ien ier ies iet iey iib iie iii iin iir iis iit in- inb ine ini inn inr ins int iny ir- irb ire iri irn irr irs irt iry is- isb ise isi isn isr iss ist isy itb ite iti itn its itt ity iye iyr iys iyt iyy n-i nbb nbe nbi nbn nbr nbs nbt ne- neb nee nei nen ner nes net ney nib nie nii nin nir nis nit nnb nne nni nnn nns nnt nrb nre nri nrn nrr nrs nrt nry nsb nse nsi nsn nsr nss nst nsy ntb nte nti ntn ntr nts ntt nye nyn nys nyt nyy rbb rbe rbi rbn rbr rbs rbt re- reb ree rei ren rer res ret rey rib rie rii rin rir ris rit riy rnb rni rnn rnr rns rnt rny rrb rri rrn rrr rrs rrt rsb rse rsi rsn rsr rss rst rtb rte rti rtn rtr rts rtt rty ry- rye ryn ryr rys ryy sbb sbe sbi sbn sbr sbs sbt sby se- seb see sei sen ser ses set sey sib sie sii sin sir sis sit snb sne sni snn snr sns snt sny sr- srb sre sri srn srr srs srt sry ss- ssb sse ssi ssn ssr sss sst stb ste sti stn str sts stt sty sy- syb sye syi syn syr sys syt tbb tbe tbi tbn tbr tbs tbt te- teb tee tei ten ter tes tet tey tib tie tii tin tir tis tit tiy tnb tne tni tnn tnr tns tnt trb tre tri trn trr trs trt try tsb tse tsi tsn tsr tss tst tsy ttb tte tti ttn ttr tts ttt tty tye tyn tyr tys tyt ybe ybi ybr ybs yby yeb yee yei yen yer yes yet yey yie yii yin yir yis yit yne ynn yns yny yre yrn yrs yrt ysb yse ysi ysr yss yst ysy yte ytn ytr yts ytt yyb yye yys yyt yyy