-er -ey bbb bbe bbo bbr bbt bby be- beb bee beo ber bet bey bob boe boo bor bot boy brb bre bro brr brt bry btb bte bto btr btt bty by- bye byo byr byt ebb ebe ebo ebr ebt eby eeb eee eeo eer eet eey eo- eob eoe eoo eor eot erb ere ero err ert ery etb ete eto etr ett ety eye eyo eyr eyt ob- obb obe obo obr obt oby oeb oee oeo oer oet oey oo- oob ooo oor oot or- orb ore oro orr ort ory ot- otb ote oto otr ott oye oyo rbb rbe rbo rbr rbt re- reb ree reo rer ret rey rob roe roo ror rot roy rrb rrr rrt rtb rte rto rtr rtt rty ry- rye ryo ryr ryy tbb tbe tbo tbr tbt te- teb tee teo ter tet tey to- tob toe too tor tot toy trb tre tro trr trt try ttb tte tto ttr ttt tty tye tyo tyr tyt ybe ybr yby yeb yee yeo yer yet yey yob yoe yoo yor yot yoy yre yro yrt yte yto ytr ytt yyb yye yyt yyy

bbbb bbeb bbet bboy bbyo bebb bebe bebo beby beeb beer beet beey beo- beor beot bere bero berr bert bery bete beto bett beye beyt bobb bobe bobo boby boee boeo boer boet boey boob booe boor boot bor- bore boro borr bort bory botb bote boto bott boty boye boyo breb bree breo brer bret brey brob broe broo bror brot brrr bry- brye bryo btob btor btrt btry bttb byer byob byre byrt byte ebbo ebbr ebby eber eboe eboo ebor eboy ebro eeby eeee eero eery eete eore eoto erbb erbe ereb erer eret erob eroe eroo erre erro erye etbr etee eter etoe etoy etre etro ette etto etty eyeb eyer eyet eyey eyot eyre eyry eyte eyyr o-eo obbo obby ober obet obey oboe obor obot oboy obre obro oere oeye oeyo oobe ooby ooer oooo oore oort oory ootb ooty orbb orbe orbo orby ore- oreb oreo orer orey oro- oroe oror orot oroy orro orry orte orto otee oter oto- otoe otoo otor otoy otre otro otry otte otto otyr oyee oyer oyre rbbb rbbr rebb rebe rebo reeb reet reot rere rero rert rery rete reto retr rett rety reye rob- robb robe robo robt roby roer roet roey roob roor root rore roro rort rory rote roto rotr rott roty roye royt rrrr rtee rybe ryeb ryet ryob ryot rytt ryyt tbrb tebo teer teet teor ter- tere tero terr tery tete teto tetr tett teye teyr to-y tobe tobo tobt toby toee toer toet toey toor toot tore toro torr tort tory tote toto totr tott toty toyb toyo toyt tre- tree treo tret trey troe troo trot troy trte trtr try- tryb trye tryo ttbb tteo tter ttoe ttoy tttt tybo tyee tyer tyet tyr- tyre tyro tyrr tyte tyto tytt tyty yber ybet ybor ybry yeer yeet yeot yerb yere yero yerr yert yery yete yeto yett yeye yeyo yeyr yobo yoot yore yoro yort yory yote yott yoye yoyo ytre yyyy

-tree b-boy bbbee be-er be-ro beber bebot beebe beeby beery beete beety beory beote berbe beret berey berob beroe beror berre berry berte berto berty betee beter betoo betor betre bett- bette betto betty betyb beyer beyre beyte bo-bo bobby bobet bobr bobre bobry boero booby booer boore boort booty booyo borbo boree borer boret borey boro- boroo borot borre borro botet botro botte botty botye boyer boyet boyey boyte breer breet breo- brere brery breto brett breyr brobo broby broer broto broye brrrr bryo- bryt- btr-t by-by bybee byrre byrte bytr- e-boy ebber ebbet ebert eeeee eorre erbbe erber ereby erere eroor erore eroto errey error erte erter etete etoro etree etter eyere eyeto eyrer o-r-b obbet obert obete oboro obory obote obreb obrey obyte oeyer oeyre oo-er ooooo orbey orbot oreo- orere orero oreye orobe orobo oroer orret orrey orter ortet ortoo otere otero ototo otter ottey ottyr otyre oyoor rebbe reber rebet reere rere- reree reret rerob retee reter retro retry rette retto reyte ro-ro robbe robbo robby rober robey robo- robor robot roboy robrt robte roero rooer roore roote rooty rorer rorty roteb roter roto- rotor rotot rotte rotto rotye royer royet rybee rytro rytte ryyty tbtbt tbyte teber tebet tebey teety terby teret teror terre terro terry tert- teter tetr- tetro tette tetty teyre to-be tobbe tober tobet tobey tobor tobot tobre toerr toeto toeye toobe tooby toore torbe toreo toret torey torob torre torro torry torte torto torty toter toto- totoe totoo totte totty totyr toyer toyte treer treet treey trere trete trett trety treye troee trory trott troye trybe tryer tryor tryte tryto ttttt tybee tybor tyere tyree tyrer tyret tyro- tytte ybete ybore ye-ye yeere yeoor yerby yeroo yeter yette yetto yeyre yo-yo yobbo yobro yoore yorro yorte yorty yotto ytore ytter yyete

b-tree bbbbbb bberry bebeto beebee beeter berbee berbeo berber bereet berere berrer berret bertre bertry betere betete bettee better bettor beyete bobber bobete bobote boeber boerre boober booboo bootee booter borbor boreto borety boroey borore bororo borrby borte boryty botere botero botete botoro botree botry- botter boyery boyett boyter boytoy breere bretby brette breyer broery broter brotto brytte by-bet bybbey byebye byrote bytore eb-eye ebbert eebree eeyore eototo erbree eroto- errett etoeot ettore eyerer eyetoy oberto obeyer obroty obtree oerter oooooo ororry orrery otryby ottery ottoor ottyre r-tree re-try reboot rebore rebote reetry rerobe reroot reteer reteet reteoo retere retore retort retree retret retro- retrot retter reyero reyter robber robert roboto roboty robroy rooter rootte rorter rotter royter t-tree teebee teetee teeter terete terreo terrer terret terror terrot terrye terter tertre tertry tetete tetter tettey teyber tobeor toboot toetoe toeyer tooter tootoo toreby torero tororo torret torrey tortey tortor totebo totoro totrot totter toyboy toyobo trebor trebry treete tretee trette tretty treyte trotro trotte trotty troyee