-er -ey -ic b-u bbb bbc bbe bbi bbr bbs bbu bby bcb bcc bce bci bcr bcs bcu bcy be- beb bec bee bei ber bes beu bey bi- bib bic bie bii bir bis biu biy brb bre bri brr brs bru bry bsb bsc bse bsi bsr bss bsu bsy bub buc bue bui bur bus buu buy by- byc bye byi byr bys byu c-- cbb cbc cbe cbi cbr cbs cbu cby ccb ccc cce cci ccr ccs ccu ce- ceb cec cee cei cer ces ceu cey ci- cib cic cie cii cir cis ciu crb crc cre cri crr crs cru cry csb csc cse csi csr css csu csy cub cuc cue cui cur cus cuu cuy cyb cyc cye cyr cys ebb ebc ebe ebi ebr ebs ebu eby ec- ecb ecc ece eci ecr ecs ecu eeb eec eee eer ees eey eib eic eie eii eir eis eiu erb erc ere eri err ers eru ery es- esb esc ese esi esr ess esu esy eu- eub euc eue eui eur eus eyc eye eyr eys ibb ibc ibe ibi ibr ibs ibu iby icb icc ice ici icr ics icu icy ie- iec iee iei ier ies iey iib iic iie iii iir iis iiu ir- irb irc ire iri irr irs iru iry is- isb isc ise isi isr iss isu isy iu- iub iuc iue iui iur ius iyc iye iyr iys iyy rbb rbc rbe rbi rbr rbs rbu rcb rcc rce rci rcr rcs rcu re- reb rec ree rei rer res reu rey rib ric rie rii rir ris riy rrb rrc rri rrr rrs rru rsb rsc rse rsi rsr rss rsu rub ruc rue rui rur rus ruu ruy ry- ryc rye ryr rys ryu ryy sbb sbc sbe sbi sbr sbs sbu sby scb scc sce sci scr scs scu se- seb sec see sei ser ses seu sey sib sic sie sii sir sis siu sr- srb src sre sri srr srs sry ss- ssb ssc sse ssi ssr sss ssu sub suc sue sui sur sus suu suy sy- syb syc sye syi syr sys syu ubb ubc ube ubi ubr ubs ubu uby ucb ucc uce uci ucr ucs ucu ueb uec uee uei uer ues uey uib uic uie uii uir uis uiu ur- urb urc ure uri urr urs uru ury usb usc use usi usr uss usu uuc uue uur uus uuu uyc uyi uys uyu ybc ybe ybi ybr ybs yby ycc yce yci ycs ycu ycy yeb yec yee yei yer yes yey yie yii yir yis yrc yre yrs yru ysb ysc yse ysi ysr yss ysu ysy yue yui yur yus yuu yuy yyb yyc yye yys yyu yyy