learn elarn laern alern ealrn aelrn leran elran lrean rlean erlan relan laren alren lraen rlaen arlen ralen earln aerln eraln realn areln raeln leanr elanr laenr alenr ealnr aelnr lenar elnar lnear nlear enlar nelar laner alner lnaer nlaer anler naler eanlr aenlr enalr nealr anelr naelr lerna elrna lrena rlena erlna relna lenra elnra lnera nlera enlra nelra lrnea rlnea lnrea nlrea rnlea nrlea ernla renla enrla nerla rnela nrela larne alrne lrane rlane arlne ralne lanre alnre lnare nlare anlre nalre lrnae rlnae lnrae nlrae rnlae nrlae arnle ranle anrle narle rnale nrale earnl aernl eranl reanl arenl raenl eanrl aenrl enarl nearl anerl naerl ernal renal enral neral rneal nreal arnel ranel anrel narel rnael nrael
Note: these 'words' (valid or invalid) are all the permutations of the word learn. These words are obtained by scrambling the letters in learn.