-er -ey b-u bbb bbe bbr bbs bbt bbu bby be- beb bee ber bes bet beu bey brb bre brr brs brt bru bry bsb bse bsr bss bst bsu bsy btb bte btr bts btt btu bty bub bue bur bus but buu buy by- bye byr bys byt byu ebb ebe ebr ebs ebt ebu eby eeb eee eer ees eet eey erb ere err ers ert eru ery es- esb ese esr ess est esu esy etb ete etr ets ett etu ety eu- eub eue eur eus eut eye eyr eys eyt rbb rbe rbr rbs rbt rbu re- reb ree rer res ret reu rey rrb rrr rrs rrt rru rsb rse rsr rss rst rsu rtb rte rtr rts rtt rtu rty rub rue rur rus rut ruu ruy ry- rye ryr rys ryu ryy sbb sbe sbr sbs sbt sbu sby se- seb see ser ses set seu sey sr- srb sre srr srs srt sry ss- ssb sse ssr sss sst ssu stb ste str sts stt stu sty sub sue sur sus sut suu suy sy- syb sye syr sys syt syu tbb tbe tbr tbs tbt tbu te- teb tee ter tes tet teu tey trb tre trr trs trt tru try tsb tse tsr tss tst tsu tsy ttb tte ttr tts ttt ttu tty tub tue tur tus tut tuu tuy tye tyr tys tyt ubb ube ubr ubs ubt ubu uby ueb uee uer ues uet uey ur- urb ure urr urs urt uru ury usb use usr uss ust usu utb ute utr uts utt utu uty uue uur uus uut uuu uys uyu ybe ybr ybs yby yeb yee yer yes yet yey yre yrs yrt yru ysb yse ysr yss yst ysu ysy yte ytr yts ytt ytu yue yur yus yut yuu yuy yyb yye yys yyt yyu yyy

bbbb bbbs bbeb bbet bebb bebe beby beeb beer bees beet beey bere berr bers bert beru bery bes- bese bess best besy bete bets bett betu beur beye beys beyt breb bree brer bres bret brey brrr brrs brsb brsr brst brue brus brut bry- brye bseb bsee bser bses bset bsse bsts btrt btry btss bttb btus bubb bube bubs bubu buer bueu bur- burb bure burr burs burt buru bury buse buss bust busu busy but- bute buts butt buty buus buys buyu byer byes byre byrt bysb byse byss byst bysy byte byts ebbr ebbs ebby eber ebes ebru ebur ebus eeby eeee eees eers eery eese eesy eete eets eetu erbb erbe ereb erer eres eret erre errs erse erst erts ertu erub erur erus erye esbs esee eser eses eset esse esst essu essy este estr ests esty esus etbr etee eter etes etre etsu etsy ette ettu etty euer eur- eure eurt eury euse eyeb eyer eyes eyet eyey eyre eyry eyse eyst eyte eyyr rbbb rbbr rbbs rbss rbst rebb rebe rebs rebu reeb rees reet rere rers rert reru rery rese ress rest rete retr rets rett rety reue reus reut reuu reye reys rrrr rsee rsre rsts rstu rtee rtes rtss rtts rubb rube rubs rubu ruby ruer rues ruet rure rurs ruru ruse russ rust rusu rusy rute ruts rutt rutu ruty ruys rybe ryeb ryes ryet rysy rytt ryue ryyt sbbs sber sbse sbst sbus se-e se-s se-t se-u se-y sebe sebs sebt seby seeb seer sees seet seeu seey serb sere serr sers sert seru sery sese sess sest set- sete sets sett seur seye seys seyt srby sreb sres srtr srub ssbr ssby ssee sses sset ssrs sssb ssss sstb ssts stbs stee ster stes stet stey stre strs stru stry stss sttr stub stue stur stus stut stuy stye styr stys sub- subb subs suee suer sues suet sueu suey sur- sure surr surs surt suru sury sus- suse suss sust susu susy sute sutu suty suus suyr suyu syer syes syre syrs syrt syry syse syss syst syte sytt syue tbbs tbrb tbst tebu teer tees teet ter- tere terr ters teru tery tese tess test tete tetr tets tett tetu teut teye teyr teys tre- tree tres tret treu trey trst trte trtr trub true trus trut truu try- tryb trye trys tses tset tsey tsse tssr tsst tsts tsys ttbb tter ttss tttt ttys tubb tube tubr tubs tubu tuer tues tuet tuey turb ture turr turs turt turu tury tuss tust tute tuts tutt tutu tuty tuye tuys tyee tyer tyes tyet tyr- tyre tyrr tyse tyss tyst tyte tytt tyty tyus ubbe uber ubet uers uess ueys urbe urbs ure- ures uret urey urre urry urse urss ursu ursy urte urts urur urus urut usbe usbr usbs usee user uses uset ussb usse ussr usss usst ussu ussy ustb uste usts usus utby uter utes uttu uuuu uyre uyts ybbs yber ybet ybry ye-u yeer yees yeet yerb yere yerr yers yert yery yess yest yesu yete yets yett yeue yeye yeyr ysby ysee yser yses yset ysse yssu ysue ysyb ytre yubu yuer yure yurt yury yust yute yutu yuty yuye yuyu yyyy

-tree bbbee bbser bbuss be-er beber bebes beebe beebs beeby beers beery beest beete beets beety beeut berbe beres beret berey berre berru berry berse berte berts berty berus beryu besee beset besey besse bessy beste bests besut besys betee beter betes betre betrs betsy bett- bette betts betty betus betyb betys beuer beure beury beust beute beyer beyre beyte brebu breer brees breet brere brers brery brese bress brest brets brett breu- breyr brrrr bruer brues bruet bruse bruss brust brusy brute bruty bruys brys- bryt- bsure btr-t btstu bubbe bubby buber bubry bubsy burbs bures buret burey burrs burru burry burse burst burte burts burtt burus burut burye buryt busby buser buses busey busse bussu bussy buste busts busty busur busut busuu buter butes butte butts butty butut butyr buyer buysy by-by bybee bybus byers byres byrre