ebtva betva etbva tebva bteva tbeva ebvta bevta evbta vebta bveta vbeta etvba tevba evtba vetba tveba vteba btvea tbvea bvtea vbtea tvbea vtbea ebtav betav etbav tebav bteav tbeav ebatv beatv eabtv aebtv baetv abetv etabv teabv eatbv aetbv taebv atebv btaev tbaev batev abtev tabev atbev ebvat bevat evbat vebat bveat vbeat ebavt beavt eabvt aebvt baevt abevt evabt veabt eavbt aevbt vaebt avebt bvaet vbaet bavet abvet vabet avbet etvab tevab evtab vetab tveab vteab etavb teavb eatvb aetvb taevb atevb evatb veatb eavtb aevtb vaetb avetb tvaeb vtaeb taveb atveb vateb avteb btvae tbvae bvtae vbtae tvbae vtbae btave tbave batve abtve tabve atbve bvate vbate bavte abvte vabte avbte tvabe vtabe tavbe atvbe vatbe avtbe
Note: these 'words' (valid or invalid) are all the permutations of the word ebtva. These words are obtained by scrambling the letters in ebtva.