iambs aimbs imabs miabs amibs maibs iabms aibms ibams biams abims baims imbas mibas ibmas bimas mbias bmias ambis mabis abmis bamis mbais bmais iamsb aimsb imasb miasb amisb maisb iasmb aismb isamb siamb asimb saimb imsab misab ismab simab msiab smiab amsib masib asmib samib msaib smaib iabsm aibsm ibasm biasm abism baism iasbm aisbm isabm siabm asibm saibm ibsam bisam isbam sibam bsiam sbiam absim basim asbim sabim bsaim sbaim imbsa mibsa ibmsa bimsa mbisa bmisa imsba misba ismba simba msiba smiba ibsma bisma isbma sibma bsima sbima mbsia bmsia msbia smbia bsmia sbmia ambsi mabsi abmsi bamsi mbasi bmasi amsbi masbi asmbi sambi msabi smabi absmi basmi asbmi sabmi bsami sbami mbsai bmsai msbai smbai bsmai sbmai
Note: these 'words' (valid or invalid) are all the permutations of the word iambs. These words are obtained by scrambling the letters in iambs.