wifes iwfes wfies fwies ifwes fiwes wiefs iwefs weifs ewifs iewfs eiwfs wfeis fweis wefis ewfis fewis efwis ifews fiews iefws eifws feiws efiws wifse iwfse wfise fwise ifwse fiwse wisfe iwsfe wsife swife iswfe siwfe wfsie fwsie wsfie swfie fswie sfwie ifswe fiswe isfwe sifwe fsiwe sfiwe wiesf iwesf weisf ewisf iewsf eiwsf wisef iwsef wsief swief iswef siwef wesif ewsif wseif sweif eswif sewif ieswf eiswf isewf siewf esiwf seiwf wfesi fwesi wefsi ewfsi fewsi efwsi wfsei fwsei wsfei swfei fswei sfwei wesfi ewsfi wsefi swefi eswfi sewfi feswi efswi fsewi sfewi esfwi sefwi ifesw fiesw iefsw eifsw feisw efisw ifsew fisew isfew sifew fsiew sfiew iesfw eisfw isefw siefw esifw seifw fesiw efsiw fseiw sfeiw esfiw sefiw
Note: these 'words' (valid or invalid) are all the permutations of the word wifes. These words are obtained by scrambling the letters in wifes.