-er -ey b-u bbb bbe bbk bbr bbt bbu bby be- beb bee bek ber bet beu bey bkb bke bkk bkr bkt brb bre brk brr brt bru bry btb bte btk btr btt btu bty bub bue buk bur but buu buy by- bye byk byr byt byu ebb ebe ebk ebr ebt ebu eby eeb eee eek eer eet eey ekb eke ekr ekt eku eky erb ere erk err ert eru ery etb ete etk etr ett etu ety eu- eub eue eur eut eye eyr eyt k-t kbb kbe kbk kbr kbu ke- keb kee kek ker ket key kkb kke kkk kkr kkt kku kky krk krr krt kru kry ktb kte ktk ktr ktt ktu kub kue kuk kur kut kuu kuy kye kyr kyt kyu rbb rbe rbk rbr rbt rbu re- reb ree rek rer ret reu rey rkb rke rkk rkt rku rky rrb rrk rrr rrt rru rtb rte rtk rtr rtt rtu rty rub rue ruk rur rut ruu ruy ry- rye ryk ryr ryu ryy tbb tbe tbk tbr tbt tbu te- teb tee tek ter tet teu tey tkb tke tkk tkr tkt tky trb tre trk trr trt tru try ttb tte ttk ttr ttt ttu tty tub tue tuk tur tut tuu tuy tye tyr tyt ubb ube ubk ubr ubt ubu uby ueb uee uer uet uey ukb uke ukk ukr uku ur- urb ure urk urr urt uru ury utb ute utk utr utt utu uty uue uur uut uuu uyu ybe ybr yby yeb yee yek yer yet yey ykk yre yrt yru yte ytk ytr ytt ytu yue yuk yur yut yuu yuy yyb yye yyt yyu yyy

bbbb bbeb bbet bebb bebe beby beeb beek beer beet beey beke bere berk berr bert beru bery bete bett betu beuk beur beye beyk beyt bkry breb bree brek brer bret brey brkb brrr brue brut bry- brye bryk btek btrt btry bttb bubb bube bubu buer bueu buke bukk buku buky bur- burb bure burk burr burt buru bury but- bute butt buty buyu byer byke byre byrk byrt byte ebbr ebby eber ebru ebur eeby eeee eeke eery eete eetu ekeb ekek eker eket ekur erbb erbe ereb erer eret erke erre ertu erub erur erye etbr etee eter etre ette ettu etty euer eur- eure eurt eury eyeb eyer eyet eyey eyke eyre eyry eyte eyyr kbbb kbbe kbbk kbbr kbbt kbbu kbeb kbee kbek kber kbet kbey kbkb kbkk kbkr kbky kbrb kbre kbrk kbrt kbru kbry kbtb kbte kbtk kbtr kbtt kbub kbue kbuk kbur kbut kbuu kbuy kbyb kbyr kbyu kebb kebe kebr kebt kebu keek keer keet kekb keke keku ker- kerb kere kerk kerr kert keru ket- kete ketk ketr kett ketu kety keur keyb keye keyu keyy kkbb kkbe kkbr kkbt kkkk kkrb kkre kkrk kkrr kkrt kktk kktu kkty kkut kkuu kkyy krbb krbe krbk krbr krbt kreb kree krek kret kreu krke krkk krkr krku krky krrb krre krrk krrr krrt krry krtk krtr krty krue kruk krur krye kryk kryy ktbb ktbr ktbt ktbu ktby ktee ktek ktkb ktke ktkk ktkr ktkt ktku ktrb ktre ktrk ktrr ktrt ktru ktry kttk kttr kttt kttu ktty ktub ktyr kubb kube kubr kubu kuby kuek kueu kuke kukk kuku kuky kurb kure kurk kurr kurt kuru kury kute kutr kutt kutu kuty kuub kuuk kuur kuuu kuyu kuyy kybb kybe kybr kyby kyee kyet kyke kykk kykr kyky kyre kyrk kyte kytt kyty kyuk kyur kyuu kyyk kyyt kyyy rbbb rbbr rebb rebe rebk rebu reeb reek reet reke rekt reky rere rert reru rery rete retr rett rety reue reuk reut reuu reye reyk rrrr rtee rubb rube rubu ruby ruer ruet ruke rukk ruku rure ruru rute rutt rutu ruty rybe ryeb ryet ryke rytt ryue ryuk ryyt tbrb tebu teek teer teet teke ter- tere terk terr teru tery tete tetr tett tetu teuk teut teye teyk teyr tkey tre- tree trek tret treu trey trte trtr trub true truk trut truu try- tryb trye ttbb tter tttt tubb tube tubr tubu tuer tuet tuey tuke turb ture turk turr turt turu tury tute tutt tutu tuty tuye tyee tyek tyer tyet tyke tyr- tyre tyrr tyte tytt tyty ubbe ubek uber ubet ukek ukeu ukky ukur urbe ure- uret urey urke urre urry urte uruk urur urut utby uter uttu uuuu uyre yber ybet ybry ye-u yeek yeer yeet yeke yerb yere yerk yerr yert yery yete yett yeue yeuk yeye yeyr ykey ykut ykyt yrke ytky ytre yubu yuer yuke yuku yuky yure yurt yury yute yutu yuty yuye yuyu yyyy

-tree b-r-k bbbee be-er bebek beber beebe beeby beeke beery beete beety beeut beker bekke berbe berek beret berey berk- berke berre berru berry berte berty beryu betee beter betke betre bett- bette betty betyb beuer beure beury beute beyer beyke beyre beyte brebu breek breer breet breke brere brery brett breu- breyr brrrr bruer bruet bruke brute bruty bruyk bryke bryt- btr-t bubbe bubby buber bubry buker buket bukk- burek buret burey burke burru burry burte burtt buruk burut burye buryt buter butke butte butty butut butyr buyer buyuk by-by bybee byker byrke byrre byrte bytr- ebber ebbet ebert ebure eeeee ekeby ekker ekuku ekuru erbbe erber ereby erere errey errtu erte erter eruby eruke eteke etete etree etrek etter eturu etyek euery eukey eurre eury- eyere eyrer k-t-b k-ute kebbe kebby kebek keber keere kerby kerek keret kerey kerre kerry kertu ketek keter kette ketty keyer keyre keyry keyur kreek kreke krery krete kreuk kreye kruty kryry ktery kubek kuber kukur kurbu kurek kurku kurre kurte kuruk kuryk kutte kuttu kutty kutur kuyte kyrre kytte kyuer rebbe reber rebet rebut rebuy reeky reere rekey rekke rekky rere- reree reret retee reter retry rette reuer reuet reute reyke reyte rt-rk rubby rubee ruber rubey rubke ruere ruete rukke rurey ruter rutey rutte rutty ruutu