-tree bbbee bbser be-er beber bebes beebe beebs beefs beeft beers beest beete beets beffe bembe bemer bemet berbe beres beret berme berms berre berse berte berts besee besem beset besme besse beste bests betee beter betes betre betrs bett- bette betts bmfms bmrst breef breem breer brees breet breme bremm brems brere brers brese bress brest brets brett brmmm brrrr btr-t btrfs bttms ebber ebbet ebers ebert eeeee ef-ts efere efetf effer effet effts efrem efter embee ember emeer emere emert emese emmer emmet emtee erbbe erber erebs erem- erere erest erets ermes erres erses erste ersts erte erter ertes esere esmes esref esser esses essse estee ester estes estet estre etest etete etree etres etter ettes febre feebs feeme feere feers feese feets femes femme feres feret ferme ferr- ferre ferse ferte feser fesse fest- feste fests feter fetes fette freer frees freet freme fremm frere frese fress frest frets frett ftest ftmts ftrtt m-set mbebe mbere mbres mbret mebbe meees meefe meems meere meers meese meest meete meets meffs membe memer memes merer meres meret merms merre merse merss merte mesee mesem meses messe meste meter metes metr- metre metse mette metts mmfbm mmmmm mrmet mt-te mt-tf mt-tm mt-tr mt-tt mterf mtfmt mtree rebbe reber rebet rebts reefe reefs reeft reeme reere reese reest refer refet reffe refme refms refts remee remer remet remse rere- reree reres reret resee reses reset resse reste restr rests retee retem reter retes rette retts rsssf rtems rtrfm sebbe sebes sebet seebe seeem seeme seems seere seers seese seest seete sefer sefes seffe sefte semee semes semet semme serbs seref serer seres seret serfe serff serfs serme serre serse serss sert- serte serts seser seses sesse seste setee setem seter setme setse setsf sette setts smees smeet smere smert smets sssrb sssss steem steer stees steet steff stemm stems stere sterr sters stert stete stets stmfr strbe streb stree strem stret strrs strsm tbtbt teber tebet teebs teeme teems teers teese teest teets tefe teffs tembe temes temse terem teres teret terme terms terre terrs terse tert- tesem tesse teste tests teter tetes tetr- tette treer trees treet trefe treff trefs treme trere tres- trese tress trest trete trets trett tsebe tsere tsets tsmmr ttest ttttt