etnas tenas entas netas tneas nteas etans teans eatns aetns taens atens enats neats eants aents naets anets tnaes ntaes tanes atnes nates antes etnsa tensa entsa netsa tnesa ntesa etsna tesna estna setna tsena stena ensta nesta esnta senta nseta sneta tnsea ntsea tsnea stnea nstea sntea etasn teasn eatsn aetsn taesn atesn etsan tesan estan setan tsean stean eastn aestn esatn seatn asetn saetn tasen atsen tsaen staen asten saten enast neast eanst aenst naest anest ensat nesat esnat senat nseat sneat easnt aesnt esant seant asent saent naset anset nsaet snaet asnet sanet tnase ntase tanse atnse natse antse tnsae ntsae tsnae stnae nstae sntae tasne atsne tsane stane astne satne naste anste nsate snate asnte sante
Note: these 'words' (valid or invalid) are all the permutations of the word etnas. These words are obtained by scrambling the letters in etnas.