lubes ulbes lbues blues ubles bules luebs ulebs leubs elubs uelbs eulbs lbeus bleus lebus elbus belus eblus ubels buels uebls eubls beuls ebuls lubse ulbse lbuse bluse ublse bulse lusbe ulsbe lsube slube uslbe sulbe lbsue blsue lsbue slbue bslue sblue ubsle busle usble suble bsule sbule luesb ulesb leusb elusb uelsb eulsb luseb ulseb lsueb slueb usleb suleb lesub elsub lseub sleub eslub selub ueslb euslb uselb suelb esulb seulb lbesu blesu lebsu elbsu belsu eblsu lbseu blseu lsbeu slbeu bsleu sbleu lesbu elsbu lsebu slebu eslbu selbu beslu ebslu bselu sbelu esblu seblu ubesl buesl uebsl eubsl beusl ebusl ubsel busel usbel subel bsuel sbuel uesbl eusbl usebl suebl esubl seubl besul ebsul bseul sbeul esbul sebul
Note: these 'words' (valid or invalid) are all the permutations of the word lubes. These words are obtained by scrambling the letters in lubes.