fient ifent feint efint iefnt eifnt finet ifnet fniet nfiet infet nifet fenit efnit fneit nfeit enfit nefit ienft einft ineft nieft enift neift fietn ifetn feitn efitn ieftn eiftn fiten iften ftien tfien itfen tifen fetin eftin ftein tfein etfin tefin ietfn eitfn itefn tiefn etifn teifn finte ifnte fnite nfite infte nifte fitne iftne ftine tfine itfne tifne fntie nftie ftnie tfnie ntfie tnfie intfe nitfe itnfe tinfe ntife tnife fenti efnti fneti nfeti enfti nefti fetni eftni fteni tfeni etfni tefni fntei nftei ftnei tfnei ntfei tnfei entfi netfi etnfi tenfi ntefi tnefi ientf eintf inetf nietf enitf neitf ietnf eitnf itenf tienf etinf teinf intef nitef itnef tinef ntief tnief entif netif etnif tenif nteif tneif
Note: these 'words' (valid or invalid) are all the permutations of the word fient. These words are obtained by scrambling the letters in fient.