treens rteens terens etrens retens ertens treens rteens terens etrens retens ertens teerns eterns teerns eterns eetrns eetrns reetns eretns reetns eretns eertns eertns trenes rtenes ternes etrnes retnes ertnes trnees rtnees tnrees ntrees rntees nrtees tenres etnres tneres nteres entres netres rentes erntes rnetes nretes enrtes nertes trenes rtenes ternes etrnes retnes ertnes trnees rtnees tnrees ntrees rntees nrtees tenres etnres tneres nteres entres netres rentes erntes rnetes nretes enrtes nertes teenrs etenrs teenrs etenrs eetnrs eetnrs teners etners tneers nteers enters neters teners etners tneers nteers enters neters eentrs eentrs enetrs neetrs enetrs neetrs reents erents reents erents eernts eernts renets ernets rneets nreets enrets nerets renets ernets rneets nreets enrets nerets eenrts eenrts enerts neerts enerts neerts treesn rteesn teresn etresn retesn ertesn treesn rteesn teresn etresn retesn ertesn teersn etersn teersn etersn eetrsn eetrsn reetsn eretsn reetsn eretsn eertsn eertsn tresen rtesen tersen etrsen retsen ertsen trseen rtseen tsreen streen rsteen srteen tesren etsren tseren steren estren setren resten ersten rseten sreten esrten serten tresen rtesen tersen etrsen retsen ertsen trseen rtseen tsreen streen rsteen srteen tesren etsren tseren steren estren setren resten ersten rseten sreten esrten serten teesrn etesrn teesrn etesrn eetsrn eetsrn tesern etsern tseern steern estern setern tesern etsern tseern steern estern setern eestrn eestrn esetrn seetrn esetrn seetrn reestn erestn reestn erestn eerstn eerstn resetn ersetn rseetn sreetn esretn seretn resetn ersetn rseetn sreetn esretn seretn eesrtn eesrtn esertn seertn esertn seertn trense rtense ternse etrnse retnse ertnse trnese rtnese tnrese ntrese rntese nrtese tenrse etnrse tnerse nterse entrse netrse rentse erntse rnetse nretse enrtse nertse tresne rtesne tersne etrsne retsne ertsne trsene rtsene tsrene strene rstene srtene tesrne etsrne tserne sterne estrne setrne restne erstne rsetne sretne esrtne sertne trnsee rtnsee tnrsee ntrsee rntsee nrtsee trsnee rtsnee tsrnee strnee rstnee srtnee tnsree ntsree tsnree stnree nstree sntree rnstee nrstee rsntee srntee nsrtee snrtee tensre etnsre tnesre ntesre entsre netsre tesnre etsnre tsenre stenre estnre setnre tnsere ntsere tsnere stnere nstere sntere enstre nestre esntre sentre nsetre snetre renste ernste rneste nreste enrste nerste resnte ersnte rsente srente esrnte sernte rnsete nrsete rsnete srnete nsrete snrete ensrte nesrte esnrte senrte nserte snerte trense rtense ternse etrnse retnse ertnse trnese rtnese tnrese ntrese rntese nrtese tenrse etnrse tnerse nterse entrse netrse rentse erntse rnetse nretse enrtse nertse tresne rtesne tersne etrsne retsne ertsne trsene rtsene tsrene strene rstene srtene tesrne etsrne tserne sterne estrne setrne restne erstne rsetne sretne esrtne sertne trnsee rtnsee tnrsee ntrsee rntsee nrtsee trsnee rtsnee tsrnee strnee rstnee srtnee tnsree ntsree tsnree stnree nstree sntree rnstee nrstee rsntee srntee nsrtee snrtee tensre etnsre tnesre ntesre entsre netsre tesnre etsnre tsenre stenre estnre setnre tnsere ntsere tsnere stnere nstere sntere enstre nestre esntre sentre nsetre snetre renste ernste rneste nreste enrste nerste resnte ersnte rsente srente esrnte sernte rnsete nrsete rsnete srnete nsrete snrete ensrte nesrte esnrte senrte nserte snerte teensr etensr teensr etensr eetnsr eetnsr tenesr etnesr tneesr nteesr entesr netesr tenesr etnesr tneesr nteesr entesr netesr eentsr eentsr enetsr neetsr enetsr neetsr teesnr etesnr teesnr etesnr eetsnr eetsnr tesenr etsenr tseenr steenr estenr setenr tesenr etsenr tseenr steenr estenr setenr eestnr eestnr esetnr seetnr esetnr seetnr tenser etnser tneser nteser entser netser tesner etsner tsener stener estner setner tnseer ntseer tsneer stneer nsteer snteer enster nester esnter senter nseter sneter tenser etnser tneser nteser entser netser tesner etsner tsener stener estner setner tnseer ntseer tsneer stneer nsteer snteer enster nester esnter senter nseter sneter eenstr eenstr enestr neestr enestr neestr eesntr eesntr esentr seentr esentr seentr ensetr nesetr esnetr senetr nseetr sneetr ensetr nesetr esnetr senetr nseetr sneetr reenst erenst reenst erenst eernst eernst renest ernest rneest nreest enrest nerest renest ernest rneest nreest enrest nerest eenrst eenrst enerst neerst enerst neerst reesnt eresnt reesnt eresnt eersnt eersnt resent ersent rseent sreent esrent serent resent ersent rseent sreent esrent serent eesrnt eesrnt esernt seernt esernt seernt renset ernset rneset nreset enrset nerset resnet ersnet rsenet srenet esrnet sernet rnseet nrseet rsneet srneet nsreet snreet ensret nesret esnret senret nseret sneret renset ernset rneset nreset enrset nerset resnet ersnet rsenet srenet esrnet sernet rnseet nrseet rsneet srneet nsreet snreet ensret nesret esnret senret nseret sneret eensrt eensrt enesrt neesrt enesrt neesrt eesnrt eesnrt esenrt seenrt esenrt seenrt ensert nesert esnert senert nseert sneert ensert nesert esnert senert nseert sneert
Note: these 'words' (valid or invalid) are all the permutations of the word treens. These words are obtained by scrambling the letters in treens.