soften osften sfoten fsoten ofsten fosten sotfen ostfen stofen tsofen otsfen tosfen sftoen fstoen stfoen tsfoen ftsoen tfsoen oftsen fotsen otfsen tofsen ftosen tfosen sofetn osfetn sfoetn fsoetn ofsetn fosetn soeftn oseftn seoftn esoftn oesftn eosftn sfeotn fseotn sefotn esfotn fesotn efsotn ofestn foestn oefstn eofstn feostn efostn sotefn ostefn stoefn tsoefn otsefn tosefn soetfn osetfn seotfn esotfn oestfn eostfn steofn tseofn setofn estofn tesofn etsofn otesfn toesfn oetsfn eotsfn teosfn etosfn sfteon fsteon stfeon tsfeon ftseon tfseon sfeton fseton sefton esfton feston efston stefon tsefon setfon estfon tesfon etsfon fteson tfeson fetson eftson tefson etfson oftesn fotesn otfesn tofesn ftoesn tfoesn ofetsn foetsn oeftsn eoftsn feotsn efotsn otefsn toefsn oetfsn eotfsn teofsn etofsn fteosn tfeosn fetosn eftosn tefosn etfosn softne osftne sfotne fsotne ofstne fostne sotfne ostfne stofne tsofne otsfne tosfne sftone fstone stfone tsfone ftsone tfsone oftsne fotsne otfsne tofsne ftosne tfosne sofnte osfnte sfonte fsonte ofsnte fosnte sonfte osnfte snofte nsofte onsfte nosfte sfnote fsnote snfote nsfote fnsote nfsote ofnste fonste onfste nofste fnoste nfoste sotnfe ostnfe stonfe tsonfe otsnfe tosnfe sontfe osntfe snotfe nsotfe onstfe nostfe stnofe tsnofe sntofe nstofe tnsofe ntsofe otnsfe tonsfe ontsfe notsfe tnosfe ntosfe sftnoe fstnoe stfnoe tsfnoe ftsnoe tfsnoe sfntoe fsntoe snftoe nsftoe fnstoe nfstoe stnfoe tsnfoe sntfoe nstfoe tnsfoe ntsfoe ftnsoe tfnsoe fntsoe nftsoe tnfsoe ntfsoe oftnse fotnse otfnse tofnse ftonse tfonse ofntse fontse onftse noftse fnotse nfotse otnfse tonfse ontfse notfse tnofse ntofse ftnose tfnose fntose nftose tnfose ntfose sofent osfent sfoent fsoent ofsent fosent soefnt osefnt seofnt esofnt oesfnt eosfnt sfeont fseont sefont esfont fesont efsont ofesnt foesnt oefsnt eofsnt feosnt efosnt sofnet osfnet sfonet fsonet ofsnet fosnet sonfet osnfet snofet nsofet onsfet nosfet sfnoet fsnoet snfoet nsfoet fnsoet nfsoet ofnset fonset onfset nofset fnoset nfoset soenft osenft seonft esonft oesnft eosnft soneft osneft snoeft nsoeft onseft noseft senoft esnoft sneoft nseoft ensoft nesoft oensft eonsft onesft noesft enosft neosft sfenot fsenot sefnot esfnot fesnot efsnot sfneot fsneot snfeot nsfeot fnseot nfseot senfot esnfot snefot nsefot ensfot nesfot fensot efnsot fnesot nfesot enfsot nefsot ofenst foenst oefnst eofnst feonst efonst ofnest fonest onfest nofest fnoest nfoest oenfst eonfst onefst noefst enofst neofst fenost efnost fneost nfeost enfost nefost sotenf ostenf stoenf tsoenf otsenf tosenf soetnf osetnf seotnf esotnf oestnf eostnf steonf tseonf setonf estonf tesonf etsonf otesnf toesnf oetsnf eotsnf teosnf etosnf sotnef ostnef stonef tsonef otsnef tosnef sontef osntef snotef nsotef onstef nostef stnoef tsnoef sntoef nstoef tnsoef ntsoef otnsef tonsef ontsef notsef tnosef ntosef soentf osentf seontf esontf oesntf eosntf sonetf osnetf snoetf nsoetf onsetf nosetf senotf esnotf sneotf nseotf ensotf nesotf oenstf eonstf onestf noestf enostf neostf stenof tsenof setnof estnof tesnof etsnof stneof tsneof snteof nsteof tnseof ntseof sentof esntof snetof nsetof enstof nestof tensof etnsof tnesof ntesof entsof netsof otensf toensf oetnsf eotnsf teonsf etonsf otnesf tonesf ontesf notesf tnoesf ntoesf oentsf eontsf onetsf noetsf enotsf neotsf tenosf etnosf tneosf nteosf entosf netosf sfteno fsteno stfeno tsfeno ftseno tfseno sfetno fsetno seftno esftno festno efstno stefno tsefno setfno estfno tesfno etsfno ftesno tfesno fetsno eftsno tefsno etfsno sftneo fstneo stfneo tsfneo ftsneo tfsneo sfnteo fsnteo snfteo nsfteo fnsteo nfsteo stnfeo tsnfeo sntfeo nstfeo tnsfeo ntsfeo ftnseo tfnseo fntseo nftseo tnfseo ntfseo sfento fsento sefnto esfnto fesnto efsnto sfneto fsneto snfeto nsfeto fnseto nfseto senfto esnfto snefto nsefto ensfto nesfto fensto efnsto fnesto nfesto enfsto nefsto stenfo tsenfo setnfo estnfo tesnfo etsnfo stnefo tsnefo sntefo nstefo tnsefo ntsefo sentfo esntfo snetfo nsetfo enstfo nestfo tensfo etnsfo tnesfo ntesfo entsfo netsfo ftenso tfenso fetnso eftnso tefnso etfnso ftneso tfneso fnteso nfteso tnfeso ntfeso fentso efntso fnetso nfetso enftso neftso tenfso etnfso tnefso ntefso entfso netfso oftens fotens otfens tofens ftoens tfoens ofetns foetns oeftns eoftns feotns efotns otefns toefns oetfns eotfns teofns etofns fteons tfeons fetons eftons tefons etfons oftnes fotnes otfnes tofnes ftones tfones ofntes fontes onftes noftes fnotes nfotes otnfes tonfes ontfes notfes tnofes ntofes ftnoes tfnoes fntoes nftoes tnfoes ntfoes ofents foents oefnts eofnts feonts efonts ofnets fonets onfets nofets fnoets nfoets oenfts eonfts onefts noefts enofts neofts fenots efnots fneots nfeots enfots nefots otenfs toenfs oetnfs eotnfs teonfs etonfs otnefs tonefs ontefs notefs tnoefs ntoefs oentfs eontfs onetfs noetfs enotfs neotfs tenofs etnofs tneofs nteofs entofs netofs ftenos tfenos fetnos eftnos tefnos etfnos ftneos tfneos fnteos nfteos tnfeos ntfeos fentos efntos fnetos nfetos enftos neftos tenfos etnfos tnefos ntefos entfos netfos
Note: these 'words' (valid or invalid) are all the permutations of the word soften. These words are obtained by scrambling the letters in soften.