rtale trale ratle artle tarle atrle rtlae trlae rltae lrtae tlrae ltrae ralte arlte rlate lrate alrte larte talre atlre tlare ltare altre latre rtael trael ratel artel tarel atrel rteal treal retal ertal teral etral raetl aretl reatl eratl aertl eartl taerl aterl tearl etarl aetrl eatrl rtlea trlea rltea lrtea tlrea ltrea rtela trela retla ertla terla etrla rleta lreta relta erlta lerta elrta tlera ltera telra etlra letra eltra ralet arlet rlaet lraet alret laret raelt arelt realt eralt aerlt earlt rleat lreat relat erlat lerat elrat alert laert aelrt ealrt leart elart taler atler tlaer ltaer alter later taelr atelr tealr etalr aetlr eatlr tlear ltear telar etlar letar eltar aletr laetr aeltr ealtr leatr elatr
Note: these 'words' (valid or invalid) are all the permutations of the word rtale. These words are obtained by scrambling the letters in rtale.