chask hcask cahsk achsk hacsk ahcsk chsak hcsak cshak schak hscak shcak cashk acshk csahk scahk aschk sachk hasck ahsck hsack shack ashck sahck chaks hcaks cahks achks hacks ahcks chkas hckas ckhas kchas hkcas khcas cakhs ackhs ckahs kcahs akchs kachs hakcs ahkcs hkacs khacs akhcs kahcs chska hcska cshka schka hscka shcka chksa hcksa ckhsa kchsa hkcsa khcsa cskha sckha cksha kcsha skcha kscha hskca shkca hksca khsca skhca kshca caskh acskh csakh scakh asckh sackh caksh acksh ckash kcash akcsh kacsh cskah sckah cksah kcsah skcah kscah askch sakch aksch kasch skach ksach haskc ahskc hsakc shakc ashkc sahkc haksc ahksc hkasc khasc akhsc kahsc hskac shkac hksac khsac skhac kshac askhc sakhc akshc kashc skahc ksahc
Note: these 'words' (valid or invalid) are all the permutations of the word chask. These words are obtained by scrambling the letters in chask.