ElementWithout kāf (reconstruction)With kāf (expressed)
Predicate-related nounمِثْلَهُ — accusativeمِثْلِهِ — genitive
PrepositionNoneكَ — preposition
Subject of laysaشَيْءٌ — nominativeشَيْءٌ — nominative
Kāf affects the form of “mithl,” but it does not remove the negating structure or change the nominative status of “shayʾ.” The grammatical result therefore involves an additional governing element, not merely another word in a string.
Unlike the two examples of ellipsis, this example illustrates how an expressed additional particle changes case.