-tree eeeee eepee eerie eetti eevee eever eipri eirie eiter eitri eppie erept erere ereve erewe erier erite errew erte erter ervie etete etite etive etree etter ettie etwee evere everi everr evert evete evett eveve evite ewert ieiri iepe ieper ierei iette iever iiiee iiiii iitti ipeti ipiti ippee ippei irete irewe irite irrep irrit itete itewe itire itive itrip itter ittre ittti ivett iview ivver iweep iwere iwrit p-rep peere peeri peert peete peeve peire peirt pepee peppe peppi pept- perer peret peri- perie perit perre perri perte perti perve peter petie petit petr- petre petri pette petti pewee pewet pewit pewpe pewre piere pieri piert pieve piewe piiri piper pipet pipit pippi pipri pirie pirre pirri piter pitie pitip pitre pitri pitti pitve pivie pivit preie prete preti pretv preve prewe prier priit prite priti pritt pritv prive priwe pter- ptere pteri ptpre ptprr ptprt reepe reere reeti reeve reewe reive repet repew repit reppe reprt reprw rere- reree reret rerip rerir retee reter retew retie retip rette revep rever revet revie revir rewer rewet rewve rieti rieve riper ripit rippe ririe river rivet rripe rtrev rvivr teepe tepee tepet tepit teret terre terri tert- terve teter tetr- tetri tette tevet tevir tewer tewet tewit ti-ti tieit tiere tieri tierp tiper tipet tipit tippi tiree tirer tiret tirit tirve titer titii titre titte titti tiver treer treet treie treip treit trepp trept trere treri trete trett treve trevi trewe triei trier triet triip tripe tripi tripp tript trit- trite tritt trive triwe ttttt tveit tweep tweer tweet tweie twere twerp twier twire twirp twite twive veere veeri veeve veire veive veper verie verre verri verte verti vertw verve vetri vette vetti vever vieri vietv viiri viper virei viret virii virre virte virve virwe vitet viti- vitr- vitre vitte vitti viver vivi- vivir vivre vreit vrwrt vvt-i weepe weere weert weete weeve weier weipe weire weite weive weper wepit wepte were- werei werew werie werpe werre werte werve weter wette wever wevet wi-wi wiper wipit wippe wipte wirer wirie wirwe witer witie witte witti wiver wrete wrett wrier write wrive ww-ii wwiii wwwww