haste ahste hsate shate ashte sahte hatse ahtse htase thase athse tahse hstae shtae htsae thsae sthae tshae asthe sathe atshe tashe stahe tsahe haset ahset hsaet shaet ashet sahet haest ahest heast ehast aehst eahst hseat sheat hesat ehsat sehat eshat aseht saeht aesht easht seaht esaht hates ahtes htaes thaes athes tahes haets ahets heats ehats aehts eahts hteas theas hetas ehtas tehas ethas atehs taehs aeths eaths teahs etahs hstea shtea htsea thsea sthea tshea hseta sheta hesta ehsta sehta eshta htesa thesa hetsa ehtsa tehsa ethsa steha tseha setha estha tesha etsha asteh sateh atseh taseh staeh tsaeh aseth saeth aesth easth seath esath atesh taesh aetsh eatsh teash etash steah tseah setah estah tesah etsah
Note: these 'words' (valid or invalid) are all the permutations of the word haste. These words are obtained by scrambling the letters in haste.