-er -ey -ly -ol bbb bbc bbe bbk bbl bbo bbr bbs bby bcb bcc bce bck bcl bco bcr bcs bcy be- beb bec bee bek bel beo ber bes bey bkb bkc bke bkk bkl bko bkr bks blb blc ble blk bll blo blr bls bly bob boc boe bok bol boo bor bos boy brb bre brk brl bro brr brs bry bsb bsc bse bsk bsl bso bsr bss bsy by- byc bye byk byl byo byr bys c-- cbb cbc cbe cbk cbl cbo cbr cbs cby ccb ccc cce cck ccl cco ccr ccs ce- ceb cec cee cek cel ceo cer ces cey ckb ckc cko cks cky cl- clb clc cle clk cll clo clr cls cly co- cob coc coe cok col coo cor cos coy crb crc cre crk crl cro crr crs cry csb csc cse csk csl cso csr css csy cyb cyc cye cyk cyl cyo cyr cys ebb ebc ebe ebk ebl ebo ebr ebs eby ec- ecb ecc ece eck ecl eco ecr ecs eeb eec eee eek eel eeo eer ees eey ekb ekc eke ekl eko ekr eks eky elb elc ele elk ell elo elr els ely eo- eob eoc eoe eok eol eoo eor eos erb erc ere erk erl ero err ers ery es- esb esc ese esk esl eso esr ess esy eyc eye eyl eyo eyr eys kbb kbc kbe kbk kbl kbo kbr kbs kcb kcc kce kck kcl kcr kcs ke- keb kec kee kek kel keo ker kes key kkb kkc kke kkk kkl kkr kks kky kl- klb klc klo klr kls kly kob koc koe kok kol koo kor kos koy krc krk krl kro krr krs kry ksb ksc kse ksk ksl kso ksr kss kyc kye kyl kyo kyr kys lbb lbc lbe lbk lbl lbo lbr lbs lcb lcc lce lck lcl lco lcr lcs lcy leb lec lee lek lel leo ler les ley lkb lkl lkr lks lky llb llc lle llk lll llo llr lls lly lob loc loe lok lol loo lor los loy lrb lrc lrk lro lrr lrs lry lsb lsc lse lsk lsl lso lsr lss lyc lye lyk lyl lyo lyr lys ob- obb obc obe obk obl obo obr obs oby oc- ocb occ ock ocl oco ocr ocs oeb oec oee oel oeo oer oes oey okb okc oke okk okl oko okr oks olb olc ole olk oll olo ols oly oo- oob ooc ook ool ooo oor oos or- orb orc ore ork orl oro orr ors ory os- osb osc ose osk osl oso osr oss oye oyl oyo oys rbb rbc rbe rbk rbl rbo rbr rbs rcb rcc rce rcl rco rcr rcs re- reb rec ree rek rel reo rer res rey rkb rkc rke rkk rko rks rky rlc rle rll rlo rlr rls rly rob roc roe rok rol roo ror ros roy rrb rrc rrk rrl rrr rrs rsb rsc rse rsk rsl rso rsr rss ry- ryc rye ryk ryo ryr rys ryy sbb sbc sbe sbk sbl sbo sbr sbs sby scb scc sce sck scl sco scr scs se- seb sec see sek sel seo ser ses sey sk- skb skc ske skk skl sko skr sks sky slb slc sle slk sll slo slr sls sly sob soc soe sok sol soo sor sos soy sr- srb src sre srk srl sro srr srs sry ss- ssb ssc sse ssk ssl sso ssr sss sy- syb syc sye syk syl syr sys ybc ybe ybl ybr ybs yby ycc yce ycl yco ycs ycy yeb yec yee yek yel yeo yer yes yey ykk ylc yle ylk yll ylr yls yly yob yoc yoe yok yol yoo yor yos yoy yrc yre yro yrs ysb ysc yse ysk ysl yso ysr yss ysy yyb yyc yye yys yyy