-tree eeeee eeler ef-ts efere efetf effer effet effts eftel efter eleet elefs elele elers eless elest elets ellel eller elles ellet elser elses eltrs erere erest erets erles erres erses erste ersts erte ertel erter ertes esels esere esref esrel essel esser esses essse estee estel ester estes estet estre etest etete etree etres ettel etter ettes ettle feele feels feere feers feese feets felet felle fells felte felts feltt ferel feres feret ferle ferr- ferre ferse ferte feser fesse fest- feste fests fetel feter fetes fette fleer flees fleet flere flers flert flete flett freel freer frees freet frels frere frese fress frest frets frett ftest ftlee ftrtt leell leere leers leert leese leest leets leffe lefse lefts leles lelle lerer leser lesse leste letre lette letts llers llrrs lsers reefe reefs reeft reels reere reese reest refel refer refet reffe refts relee reles relet relte rere- reree reres reret resee resel reses reset resse reste restr rests retee retel reter retes rette retts rless rlrts rsssf seele seels seere seers seese seest seete sefer sefes seffe sefte seler seles self- selfe selfs selle sells sellt selte seref serer seres seret serfe serff serfs serle serre serse serss sert- serte serts seser seses sesse seste setee setel seter setle setse setsf sette setts sleer sleet sleft sless slete slsts sssss steel steer stees steet steff stele stell stere sterr sters stert stete stets stree strel stret strrs teele teell teers teese teest teets tefe teffs tele- teler teles telfs tell- telle tells teres teret terre terrs terse tert- tesel tesle tesse teste tests tetel teter tetes tetle tetr- tette tlell tlett treer trees treet trefe treff trefs trele trere tres- trese tress trest trete trets trett tseel tsere tsets tstlt ttest ttttt