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