-tree e-ten eeeee eeens eener eenet eense eepee eeten enent enese enest enete enets ennes ennet enper enste enten enter entes entre entse epeen epees epene eppes ereen erept erere erest erets ernen ernes ernet ernst erres erses erste ersts erte erter ertes esene esens esere esnes esp-r espen esper espns espre essen esser esses esspn essse estee estep ester estes estet estre etern etest etete etnre etree etres etten etter ettes n-p-n neeps neere neese neest neets nenes nente neper neppe nepte neree neret nerre nerse nerst nerte nerts nesen neset nesse neste nests neten netne nette nnest nrens nsert nsess nsnps nstnt ntest ntete p-n-p p-rep peene peens peent peeps peere peers peert peese peest peete peets pene- pener penes penne penns penre pense pent- pente pents pepee pepes peppe pepst pept- peren perer peres peret perne perns pernt perps perre perse persp perst perte pesen peses pesse peste pests peter petes petr- petre pette petts ppers pptnt preen prees prene prens prent prepn preps prese press prest prete prntr pssst pssts pter- ptere pters ptpre ptprn ptprr ptprs ptprt reene reens reepe reere reese reest renee rener renes renet renne rense rente rents repen repet reppe repps reprt repts rere- reree reres reret resee resen reses reset resse reste restr rests retee reter retes retnr rette retts rnpep rnsts rrsps rtenn rttns seene seens seeps seere seers seese seest seete senen sener senes senet senne sense senst sente sents sepen sepet sept- septs seren serer seres seret serpe serps serre serse serss sert- serte serts seser seses sesse seste setee seten seter setse sette setts sneer snees snepe sneps snerp snert snese snets snrnp speen speer spees speet spene spens spent spere spern sperr spert spete spets spner spree spres spret sprtn srsen sssss steen steep steer stees steet sten- stene stenn stens stent step- stepe stepp steps stept stere stern sterr sters stert stete stets stree stren strep stret strrs sttep sttns sttsn teens teepe teers teese teest teets tenen tener tenes tenet tenne tenpn tense tente tents tepee tepes tepet teres teret terne terns terps terre terrs terse tert- tespe tesse teste tests teten teter tetes tetr- tette tntnt tppts treen treer trees treet trene trens trent trepp trept trere tres- trese tress trest trete trets trett tsere tsets ttest ttnet ttttt