-tree eeeee eevee eever eeves ef-ts efere efetf effer effet effts efter erere erest erets ereve erres erses erste ersts erte erter ertes esere esref esser esses essse estee ester estes estet estre etest etete etree etres etter ettes evere everr evers evert evese evest evete evets evett eveve evres fe-tv feere feers feese feets feres feret ferr- ferre ferse ferte feser fesse fest- feste fests feter fetes fette fever feves fevre freer frees freet frere frese fress frest frets frett ftest ftrtt reefe reefs reeft reere reese reest reeve refer refet reffe refts rere- reree reres reret resee reses reset resse reste restr rests retee reter retes rette retts rever reves revet revvs rsssf rtrev rvers seere seers seese seest seete seetv seeve sefer sefes seffe sefte seref serer seres seret serfe serff serfs serre serse serss sert- serte serts sertv serve servt seser seses sesse seste setee seter setse setsf sette setts sever sssss steer stees steet steff stere sterr sters stert stete stets steve stree stret strrs strve svete teers teese teest teets tefe teffs teres teret terre terrs terse tert- terve tesse teste tests teter tetes tetr- tette teves tevet treer trees treet trefe treff trefs trere tres- trese tress trest trete trets trett treve trevs tsere tsets tsvet ttest ttttt tvset veere veers veeve veres verre verse verss verst verte verts verve veses vesre vesse veste vests vette vever vrees