-er a-a a-b aaa aab aae aaf aak aan aao aar ab- aba abb abe abf abk abn abo abr aea aeb aee aef aek aen aeo aer af- afa afb afe aff afk afn afo afr aka akb ake akk akn ako akr an- ana anb ane anf ank ann ano anr aoa aob aoe aof aok aon aoo aor ar- ara arb are arf ark arn aro arr baa bab bae baf bak ban bao bar bba bbb bbe bbf bbk bbn bbo bbr be- bea beb bee bef bek ben beo ber bfa bfb bfe bff bfn bfo bfr bka bkb bke bkf bkk bkn bko bkr bna bnb bne bnf bnk bnn bno bnr boa bob boe bof bok bon boo bor bra brb bre brf brk brn bro brr eaa eab eae eaf eak ean eao ear eba ebb ebe ebf ebk ebn ebo ebr eea eeb eee eef eek een eeo eer ef- efa efb efe eff efo efr eka ekb eke ekf eko ekr en- ena enb ene enf enk enn eno enr eo- eoa eob eoe eof eok eon eoo eor era erb ere erf erk ern ero err faa fab fae faf fak fan fao far fba fbb fbe fbf fbk fbn fbo fbr fea feb fee fef fek fen feo fer ffa ffe fff ffk ffn ffo ffr fka fkb fkf fkk fna fnb fne fnf fnk fnn fnr foa fob foe fof fok fon foo for fra frb fre frf frk frn fro frr ka- kaa kab kae kaf kak kan kao kar kba kbb kbe kbf kbk kbn kbo kbr ke- kea keb kee kef kek ken keo ker kfa kff kfo kkb kke kkk kkn kkr kn- kna kne knf knk knn kno knr koa kob koe kof kok kon koo kor kra krf krk krn kro krr naa nab nae naf nak nan nao nar nba nbb nbe nbf nbk nbn nbo nbr ne- nea neb nee nef nek nen neo ner nfa nfb nfe nff nfk nfn nfo nfr nka nke nkf nkk nkn nko nkr nna nnb nne nnf nnk nnn nno no- noa nob noe nof nok non noo nor nra nrb nre nrf nrk nrn nro nrr oaa oab oae oaf oak oan oao oar ob- oba obb obe obf obk obn obo obr oea oeb oee oef oen oeo oer of- ofa ofb ofe off ofn ofo ofr oka okb oke okk oko okr on- ona onb one onf onk onn ono onr oo- ooa oob oof ook oon ooo oor or- ora orb ore orf ork orn oro orr ra- raa rab rae raf rak ran rao rar rba rbb rbe rbf rbk rbn rbo rbr re- rea reb ree ref rek ren reo rer rfa rfb rfe rff rfk rfn rfo rfr rkb rke rkf rkk rko rna rnb rnn rno rnr roa rob roe rof rok ron roo ror rra rrb rrf rrk rrn rrr

-ana -ane -ene -one a-ak a-be a-ok aaaa aaab aaae aaaf aaan aaar aaba aabb aaea aaen aafa aafb aaff aaka aake aana aane aaoe aaon aaoo aara aare aaro abaa abab abae abaf abak aban abar abb- abba abbb abbe abbo abbr abee aben aber abff aboa abob abof abok abon aboo abor abra abro aeaf aean aebn aeer aeka aena aeon aer- aera aero afaa afak afan afao afar afee afek afer affa affo afka afkr afoa afoe afoo afor afr- afra afre afro akaa akae akan akao akar akee aken aker akka akko akna akok akon akr- akra akre ana- anaa anab anae anak anan anao anar anba anbb anbo anee anen aner anfa anfo ank- anka anke anko anna annb anne anno ano- anoa anon anor aoba aonb aone aono aora aorb aorn arab arae araf arak aran arar arba arbe area aree aref arek aren areo arfa arfb arff arka arke arko arna arne arnk arno aroa arob aroe aron aroo aror arr- arra arre arrk arro arrr baaa baaf baak baan baar baba babb babe babo babr baek baer baff bafo bak- baka bake bako bakr bana bane bank bann bano banr baon bar- bara barb bare barf bark barn baro barr bbbb bbeb bbfn beaf beak bean bear beba bebb bebe bebo beeb beef beek been beer befa befe beff befo beka beke beko bena bene benk benn beno beo- beof beok beon beor bera bere berk bern bero berr bner bnor bnrr boab boak boan boar boba bobb bobe bobo boea boee boef boen boeo boer bofa bofe boff boka boke bokn boko bona bone bonk bonn bono boob booe boof book boon boor bor- bora bore borf bork born boro borr brab brae braf brak bran brao brea breb bree bref brek bren breo brer brka brkb brna brno broa brob broe brok bron broo bror brrr eaaf eaba eafb eana eara earb eare earn earo eban ebba ebbo ebbr eben eber ebno eboe ebon eboo ebor ebro eeea eeee eefa eefe eefn eeka eeke eena eera eero efab efbr efen efeo effa efke efon efor eka- ekab ekeb ekek eken eker ekka ekne ekoa enab enan enb- enbn enbr enea enee eneo ener enfb enka enke enkr enna enne eno- enoe enon enra eoan eoka eone eora eore eraf eran erba erbb erbe ereb eren erer erke erna erne erno erob eroe eron eroo erra erre erro f--k faaa faan faba fabe fabo faeb fafa fafe faff fafo fake fako fana fane fank fano faon fara farb fare fark faro farr fbar feaf feak fean fear feba febo feeb feek feen feer fefe feff fefo feke feko fena fene fenk fenn feof feon fera ferb fere ferk fern fero ferr ffar ffee ffff ffrr fkab fnar foaf foak foan foar foba foer fofo foke fone fono foof fook foon for- fora forb fore fork forn foro forr frab frae frak fran frea free fren freo frob froe fron kaaa kaab kaaf kaak kaan