-er -ey bbb bbc bbe bbo bbr bbs bby bcb bcc bce bco bcr bcs bcy bcz be- beb bec bee beo ber bes bey bez bob boc boe boo bor bos boy boz brb bre bro brr brs bry brz bsb bsc bse bso bsr bss bsy by- byc bye byo byr bys byz bze bzo bzr bzs bzz c-- cbb cbc cbe cbo cbr cbs cby cbz ccb ccc cce cco ccr ccs ccz ce- ceb cec cee ceo cer ces cey cez co- cob coc coe coo cor cos coy coz crb crc cre cro crr crs cry crz csb csc cse cso csr css csy csz cyb cyc cye cyo cyr cys cz- czc cze czo ebb ebc ebe ebo ebr ebs eby ec- ecb ecc ece eco ecr ecs eeb eec eee eeo eer ees eey eo- eob eoc eoe eoo eor eos erb erc ere ero err ers ery erz es- esb esc ese eso esr ess esy eyc eye eyo eyr eys eze ezo ezr ezs ezz ob- obb obc obe obo obr obs oby oc- ocb occ oco ocr ocs ocz oeb oec oee oeo oer oes oey oo- oob ooc ooo oor oos or- orb orc ore oro orr ors ory orz os- osb osc ose oso osr oss oye oyo oys oze ozo ozs ozz rbb rbc rbe rbo rbr rbs rcb rcc rce rco rcr rcs re- reb rec ree reo rer res rey rez rob roc roe roo ror ros roy roz rrb rrc rrr rrs rsb rsc rse rso rsr rss ry- ryc rye ryo ryr rys ryy ryz rzb rze rzo rzy sbb sbc sbe sbo sbr sbs sby scb scc sce sco scr scs se- seb sec see seo ser ses sey sez sob soc soe soo sor sos soy soz sr- srb src sre sro srr srs sry ss- ssb ssc sse sso ssr sss ssz sy- syb syc sye syr sys sze szr ybc ybe ybr ybs yby ybz ycc yce yco ycs ycy yeb yec yee yeo yer yes yey yez yob yoc yoe yoo yor yos yoy yrc yre yro yrs ysb ysc yse yso ysr yss ysy ysz yyb yyc yye yys yyy yyz yzb yzr yzy zbb zbc zbr zbs zby zce zco zcs zeb zec zee zeo zer zes zez zo- zob zoc zoe zoo zor zos zro zrs zse zsz zzr zzs zzy zzz