tabes atbes tbaes btaes abtes bates taebs atebs teabs etabs aetbs eatbs tbeas bteas tebas etbas betas ebtas abets baets aebts eabts beats ebats tabse atbse tbase btase abtse batse tasbe atsbe tsabe stabe astbe satbe tbsae btsae tsbae stbae bstae sbtae abste baste asbte sabte bsate sbate taesb atesb teasb etasb aetsb eatsb taseb atseb tsaeb staeb asteb sateb tesab etsab tseab steab estab setab aestb eastb asetb saetb esatb seatb tbesa btesa tebsa etbsa betsa ebtsa tbsea btsea tsbea stbea bstea sbtea tesba etsba tseba steba estba setba besta ebsta bseta sbeta esbta sebta abest baest aebst eabst beast ebast abset baset asbet sabet bsaet sbaet aesbt easbt asebt saebt esabt seabt besat ebsat bseat sbeat esbat sebat
Note: these 'words' (valid or invalid) are all the permutations of the word tabes. These words are obtained by scrambling the letters in tabes.