nedba endba ndeba dneba ednba denba nebda enbda nbeda bneda ebnda benda ndbea dnbea nbdea bndea dbnea bdnea edbna debna ebdna bedna dbena bdena nedab endab ndeab dneab ednab denab neadb enadb naedb anedb eandb aendb ndaeb dnaeb nadeb andeb daneb adneb edanb deanb eadnb aednb daenb adenb nebad enbad nbead bnead ebnad benad neabd enabd naebd anebd eanbd aenbd nbaed bnaed nabed anbed baned abned eband beand eabnd aebnd baend abend ndbae dnbae nbdae bndae dbnae bdnae ndabe dnabe nadbe andbe danbe adnbe nbade bnade nabde anbde bande abnde dbane bdane dabne adbne badne abdne edban deban ebdan bedan dbean bdean edabn deabn eadbn aedbn daebn adebn ebadn beadn eabdn aebdn baedn abedn dbaen bdaen daben adben baden abden
Note: these 'words' (valid or invalid) are all the permutations of the word nedba. These words are obtained by scrambling the letters in nedba.