-er -ey a-a a-b aaa aab aae aaj aak aao aar aay ab- aba abb abe abj abk abo abr aby aea aeb aee aej aek aeo aer aey aja ajb aje ajj ajk ajo ajr ajy aka akb ake akj akk ako akr aoa aob aoe aoj aok aoo aor ar- ara arb are arj ark aro arr ary ay- aya aye ayk ayo ayr baa bab bae baj bak bao bar bay bba bbb bbe bbk bbo bbr bby be- bea beb bee bek beo ber bey bja bjj bjk bjr bka bkb bke bkk bko bkr boa bob boe boj bok boo bor boy bra brb bre brj brk bro brr bry by- bya bye byj byk byo byr eaa eab eae eaj eak eao ear eba ebb ebe ebj ebk ebo ebr eby eea eeb eee eek eeo eer eey eja ejo eka ekb eke eko ekr eky eo- eoa eob eoe eok eoo eor era erb ere erk ero err ery eya eye eyo eyr jaa jab jae jaj jak jao jar jay jba jbj jbk jbo jbr jea jeb jee jej jek jeo jer jey jja jjb jjj jjk jjr jjy jka jkb jkk jko jkr joa job joe joj jok joo jor joy jra jrb jrk jro jrr jyj jyr ka- kaa kab kae kaj kak kao kar kay kba kbb kbe kbk kbo kbr ke- kea keb kee kek keo ker key kjb kje kjr kkb kke kkk kkr kky koa kob koe kok koo kor koy kra krk kro krr kry kya kye kyo kyr oaa oab oae oaj oak oao oar ob- oba obb obe obj obk obo obr oby oea oeb oee oeo oer oey oja ojb oje ojo ojy oka okb oke okj okk oko okr oo- ooa oob ook ooo oor or- ora orb ore ork oro orr ory oya oye oyo ra- raa rab rae raj rak rao rar ray rba rbb rbe rbk rbo rbr re- rea reb ree rek reo rer rey rja rjk rjr rkb rke rkk rko rky roa rob roe roj rok roo ror roy rra rrb rrk rrr ry- rya rye ryk ryo ryr ryy yaa yab yae yak yao yar yay ybe ybr yby yea yeb yee yek yeo yer yey yka ykk yob yoe yoj yok yoo yor yoy yra yre yro yyb yye yyy