-er -ic bbb bbc bbe bbi bbl bbr bbs bcb bcc bce bci bcl bcr bcs be- beb bec bee bei bel ber bes bi- bib bic bie bii bil bir bis blb blc ble bli bll blr bls brb bre bri brl brr brs bsb bsc bse bsi bsl bsr bss c-- cbb cbc cbe cbi cbl cbr cbs ccb ccc cce cci ccl ccr ccs ce- ceb cec cee cei cel cer ces ci- cib cic cie cii cil cir cis cl- clb clc cle cli cll clr cls crb crc cre cri crl crr crs csb csc cse csi csl csr css ebb ebc ebe ebi ebl ebr ebs ec- ecb ecc ece eci ecl ecr ecs eeb eec eee eel eer ees eib eic eie eii eil eir eis elb elc ele eli ell elr els erb erc ere eri erl err ers es- esb esc ese esi esl esr ess ibb ibc ibe ibi ibl ibr ibs icb icc ice ici icl icr ics ie- iec iee iei iel ier ies iib iic iie iii iil iir iis il- ilb ilc ile ili ill ilr ils ir- irb irc ire iri irl irr irs is- isb isc ise isi isl isr iss lbb lbc lbe lbi lbl lbr lbs lcb lcc lce lci lcl lcr lcs leb lec lee lei lel ler les lib lic lie lii lil lir lis llb llc lle lli lll llr lls lrb lrc lri lrr lrs lsb lsc lse lsi lsl lsr lss rbb rbc rbe rbi rbl rbr rbs rcb rcc rce rci rcl rcr rcs re- reb rec ree rei rel rer res rib ric rie rii ril rir ris rlc rle rli rll rlr rls rrb rrc rri rrl rrr rrs rsb rsc rse rsi rsl rsr rss sbb sbc sbe sbi sbl sbr sbs scb scc sce sci scl scr scs se- seb sec see sei sel ser ses sib sic sie sii sil sir sis slb slc sle sli sll slr sls sr- srb src sre sri srl srr srs ss- ssb ssc sse ssi ssl ssr sss