butyls ubtyls btuyls tbuyls utbyls tubyls buytls ubytls byutls ybutls uybtls yubtls btyuls tbyuls bytuls ybtuls tybuls ytbuls utybls tuybls uytbls yutbls tyubls ytubls butlys ubtlys btulys tbulys utblys tublys bultys ubltys blutys lbutys ulbtys lubtys btluys tbluys bltuys lbtuys tlbuys ltbuys utlbys tulbys ultbys lutbys tlubys ltubys buylts ubylts byults ybults uyblts yublts bulyts ublyts bluyts lbuyts ulbyts lubyts byluts ybluts blyuts lbyuts ylbuts lybuts uylbts yulbts ulybts luybts ylubts lyubts btylus tbylus bytlus ybtlus tyblus ytblus btlyus tblyus bltyus lbtyus tlbyus ltbyus byltus ybltus blytus lbytus ylbtus lybtus tylbus ytlbus tlybus ltybus yltbus lytbus utylbs tuylbs uytlbs yutlbs tyulbs ytulbs utlybs tulybs ultybs lutybs tluybs ltuybs uyltbs yultbs ulytbs luytbs ylutbs lyutbs tylubs ytlubs tlyubs ltyubs yltubs lytubs butysl ubtysl btuysl tbuysl utbysl tubysl buytsl ubytsl byutsl ybutsl uybtsl yubtsl btyusl tbyusl bytusl ybtusl tybusl ytbusl utybsl tuybsl uytbsl yutbsl tyubsl ytubsl butsyl ubtsyl btusyl tbusyl utbsyl tubsyl bustyl ubstyl bsutyl sbutyl usbtyl subtyl btsuyl tbsuyl bstuyl sbtuyl tsbuyl stbuyl utsbyl tusbyl ustbyl sutbyl tsubyl stubyl buystl ubystl byustl ybustl uybstl yubstl busytl ubsytl bsuytl sbuytl usbytl subytl bysutl ybsutl bsyutl sbyutl ysbutl sybutl uysbtl yusbtl usybtl suybtl ysubtl syubtl btysul tbysul bytsul ybtsul tybsul ytbsul btsyul tbsyul bstyul sbtyul tsbyul stbyul bystul ybstul bsytul sbytul ysbtul sybtul tysbul ytsbul tsybul stybul ystbul sytbul utysbl tuysbl uytsbl yutsbl tyusbl ytusbl utsybl tusybl ustybl sutybl tsuybl stuybl uystbl yustbl usytbl suytbl ysutbl syutbl tysubl ytsubl tsyubl styubl ystubl sytubl butlsy ubtlsy btulsy tbulsy utblsy tublsy bultsy ubltsy blutsy lbutsy ulbtsy lubtsy btlusy tblusy bltusy lbtusy tlbusy ltbusy utlbsy tulbsy ultbsy lutbsy tlubsy ltubsy butsly ubtsly btusly tbusly utbsly tubsly bustly ubstly bsutly sbutly usbtly subtly btsuly tbsuly bstuly sbtuly tsbuly stbuly utsbly tusbly ustbly sutbly tsubly stubly bulsty ublsty blusty lbusty ulbsty lubsty buslty ubslty bsulty sbulty usblty sublty blsuty lbsuty bsluty sbluty lsbuty slbuty ulsbty lusbty uslbty sulbty lsubty slubty btlsuy tblsuy bltsuy lbtsuy tlbsuy ltbsuy btsluy tbsluy bstluy sbtluy tsbluy stbluy blstuy lbstuy bsltuy sbltuy lsbtuy slbtuy tlsbuy ltsbuy tslbuy stlbuy lstbuy sltbuy utlsby tulsby ultsby lutsby tlusby ltusby utslby tuslby ustlby sutlby tsulby stulby ulstby lustby usltby sultby lsutby slutby tlsuby ltsuby tsluby stluby lstuby sltuby buylst ubylst byulst ybulst uyblst yublst bulyst ublyst bluyst lbuyst ulbyst lubyst bylust yblust blyust lbyust ylbust lybust uylbst yulbst ulybst luybst ylubst lyubst buyslt ubyslt byuslt ybuslt uybslt yubslt busylt ubsylt bsuylt sbuylt usbylt subylt bysult ybsult bsyult sbyult ysbult sybult uysblt yusblt usyblt suyblt ysublt syublt bulsyt ublsyt blusyt lbusyt ulbsyt lubsyt buslyt ubslyt bsulyt sbulyt usblyt sublyt blsuyt lbsuyt bsluyt sbluyt lsbuyt slbuyt ulsbyt lusbyt uslbyt sulbyt lsubyt slubyt bylsut yblsut blysut lbysut ylbsut lybsut byslut ybslut bsylut sbylut ysblut syblut blsyut lbsyut bslyut sblyut lsbyut slbyut ylsbut lysbut yslbut sylbut lsybut slybut uylsbt yulsbt ulysbt luysbt ylusbt lyusbt uyslbt yuslbt usylbt suylbt ysulbt syulbt ulsybt lusybt uslybt sulybt lsuybt sluybt ylsubt lysubt yslubt sylubt lsyubt slyubt btylsu tbylsu bytlsu ybtlsu tyblsu ytblsu btlysu tblysu bltysu lbtysu tlbysu ltbysu byltsu ybltsu blytsu lbytsu ylbtsu lybtsu tylbsu ytlbsu tlybsu ltybsu yltbsu lytbsu btyslu tbyslu bytslu ybtslu tybslu ytbslu btsylu tbsylu bstylu sbtylu tsbylu stbylu bystlu ybstlu bsytlu sbytlu ysbtlu sybtlu tysblu ytsblu tsyblu styblu ystblu sytblu btlsyu tblsyu bltsyu lbtsyu tlbsyu ltbsyu btslyu tbslyu bstlyu sbtlyu tsblyu stblyu blstyu lbstyu bsltyu sbltyu lsbtyu slbtyu tlsbyu ltsbyu tslbyu stlbyu lstbyu sltbyu bylstu yblstu blystu lbystu ylbstu lybstu bysltu ybsltu bsyltu sbyltu ysbltu sybltu blsytu lbsytu bslytu sblytu lsbytu slbytu ylsbtu lysbtu yslbtu sylbtu lsybtu slybtu tylsbu ytlsbu tlysbu ltysbu yltsbu lytsbu tyslbu ytslbu tsylbu stylbu ystlbu sytlbu tlsybu ltsybu tslybu stlybu lstybu sltybu ylstbu lystbu ysltbu syltbu lsytbu slytbu utylsb tuylsb uytlsb yutlsb tyulsb ytulsb utlysb tulysb ultysb lutysb tluysb ltuysb uyltsb yultsb ulytsb luytsb ylutsb lyutsb tylusb ytlusb tlyusb ltyusb yltusb lytusb utyslb tuyslb uytslb yutslb tyuslb ytuslb utsylb tusylb ustylb sutylb tsuylb stuylb uystlb yustlb usytlb suytlb ysutlb syutlb tysulb ytsulb tsyulb styulb ystulb sytulb utlsyb tulsyb ultsyb lutsyb tlusyb ltusyb utslyb tuslyb ustlyb sutlyb tsulyb stulyb ulstyb lustyb usltyb sultyb lsutyb slutyb tlsuyb ltsuyb tsluyb stluyb lstuyb sltuyb uylstb yulstb ulystb luystb ylustb lyustb uysltb yusltb usyltb suyltb ysultb syultb ulsytb lusytb uslytb sulytb lsuytb sluytb ylsutb lysutb yslutb sylutb lsyutb slyutb tylsub ytlsub tlysub ltysub yltsub lytsub tyslub ytslub tsylub stylub ystlub sytlub tlsyub ltsyub tslyub stlyub lstyub sltyub ylstub lystub ysltub syltub lsytub slytub
Note: these 'words' (valid or invalid) are all the permutations of the word butyls. These words are obtained by scrambling the letters in butyls.