-er b-u bbb bbc bbe bbk bbn bbo bbr bbu bcb bcc bce bck bcn bco bcr bcu be- beb bec bee bek ben beo ber beu bkb bkc bke bkk bkn bko bkr bnb bnc bne bnk bnn bno bnr bnu bob boc boe bok bon boo bor bou brb bre brk brn bro brr bru bub buc bue buk bun buo bur buu c-- cbb cbc cbe cbk cbn cbo cbr cbu ccb ccc cce cck ccn cco ccr ccu ce- ceb cec cee cek cen ceo cer ceu ckb ckc cko cn- cnb cnc cne cnn cno cnr cnu co- cob coc coe cok con coo cor cou crb crc cre crk crn cro crr cru cub cuc cue cuk cun cuo cur cuu ebb ebc ebe ebk ebn ebo ebr ebu ec- ecb ecc ece eck ecn eco ecr ecu eeb eec eee eek een eeo eer ekb ekc eke eko ekr eku en- enb enc ene enk enn eno enr enu eo- eob eoc eoe eok eon eoo eor eou erb erc ere erk ern ero err eru eu- eub euc eue eun eur kbb kbc kbe kbk kbn kbo kbr kbu kcb kcc kce kck kcn kcr kcu ke- keb kec kee kek ken keo ker kkb kkc kke kkk kkn kkr kku kn- knc kne knk knn kno knr knu kob koc koe kok kon koo kor kou krc krk krn kro krr kru kub kuc kue kuk kun kur kuu nbb nbc nbe nbk nbn nbo nbr nbu ncb ncc nce nck ncn nco ncr ncu ne- neb nec nee nek nen neo ner neu nkc nke nkk nkn nko nkr nku nnb nnc nne nnk nnn nno nnu no- nob noc noe nok non noo nor nou nrb nrc nre nrk nrn nro nrr nru nub nuc nue nuk nun nuo nur nuu ob- obb obc obe obk obn obo obr obu oc- ocb occ ock ocn oco ocr ocu oeb oec oee oen oeo oer okb okc oke okk oko okr oku on- onb onc one onk onn ono onr onu oo- oob ooc ook oon ooo oor or- orb orc ore ork orn oro orr oru ou- ouc oue ouk oun ouo our rbb rbc rbe rbk rbn rbo rbr rbu rcb rcc rce rcn rco rcr rcu re- reb rec ree rek ren reo rer reu rkb rkc rke rkk rko rku rnb rnc rnn rno rnr rnu rob roc roe rok ron roo ror rou rrb rrc rrk rrn rrr rru rub ruc rue ruk run ruo rur ruu ubb ubc ube ubk ubn ubo ubr ubu ucb ucc uce uck ucn uco ucr ucu ueb uec uee uen uer ukb ukc uke ukk ukn ukr uku un- unb unc une unk unn uno unr unu uob uoc uoe uok uon uoo uor ur- urb urc ure urk urn uro urr uru uuc uue uun uur uuu

-ene -one bbbb bbeb bbrc bcbc bccc bcec bcer bcnu bcor bcru bcuc bebb bebe bebo beck becu beeb beek been beer beke beko bene benk benn beno benu beo- beok beon beor berc bere berk bern bero berr beru beuk beur bner bnoc bnor bnrr bobb bobe bobo bobu boce bock boco bocu boec boee boen boeo boer boke bokn boko boku bonc bone bonk bonn bono bonu boob booc booe book boon boor bor- bore bork born boro borr boru boue bouk boun bour brcb brce breb brec bree brek bren breo brer brkb brno brob broc broe brok bron broo bror brou brrr bruc brue brun bubb bube bubo bubu bucc buce buck buco bucu buen buer bueu buke bukk buko buku bunb bune bunk bunn buno bunu buon bur- burb bure burk burn buro burr buru c-bo cbbc cbcc cbce cbcn cbcr cbcu cbec cbee cber cbkn cbko cbkr cbre cbrn ccbc ccbn cccb cccc cccu ccee ccnb ccnc ccne ccnr ccnu ccob ccoc ccrc ccre ccuc cebu cec- cece ceco ceeb ceec ceke cen- cene ceno ceor ceou cer- cerc cere cern cero ckbc ckbe ckck ckco cken cker cknb cknc ckob ckoc ckoo ckor ckrc cnbc cnco cnrc cnrr cobb cobe cobo cobu coce cock coco cocu coen cok- coke coko con- conc cone conk conn cono coob cook coon cor- corb corc core cork corn coro corr coub coue couk coun cour crbc crbu crcc crce crcr cre- creb crec cree cren creo creu crkc crne crob croc croe crok cron croo cror crub crue cruk crun cub- cubb cube cucc cuce cuck cucn cuek cuer cuk- cuke cune cuno cuon curb cure curn curo curr ebbc ebbo ebbr ebcc eben eber ebno eboe ebon eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecko ecne eco- econ ecou ecrc ecrr ecru eeee eeke eeoc eerc eero ekco ekeb ekek eken eker ekne ekur enb- enbn enbr ence enco enee eneo ener enke enkr ennc enne ennu eno- enoc enoe enon enue enur eone eore erbb erbe ercc erce ereb erec eren erer erke erne erno erob eroc eroe eron eroo errc erre erro erub eruc erur eubc euer eur- eurc eure euro kbbb kbbc kbbe kbbk kbbo kbbr kbbu kbcb kbce kbck kbco kbcr kbcu kbeb kbec kbee kbek kben kbeo kber kbkb kbkk kbko kbkr kbnn kbno kbnr kbnu kbob kboc kboe kbok kbon kboo kbrb kbrc kbre kbrk kbrn kbro kbru kbub kbuc kbue kbuk kbun kbur kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kccu kceb kcec kcee kceo kceu kckc kckk kckn kcko kckr kcnb kcno kcnr kcob kcoe kcon kcor kcou kcrc kcrn kcro kcrr kcru kcub kcue kcuk kebb kebc kebe kebn kebr kebu keck keco kecr keek keen keer kekb kekc keke keko keku ken- kene kenk kenn keno kenr kenu keok keon ker- kerb kerc kere kerk kern kero kerr keru keun keur kkbb kkbe kkbn kkbo kkbr kkcb kkck kkcn kkco kkcr kken kkkk kknb kkne kknn kkno kknu kkob