This article claims that the alteration between the interrogatives
whom and accusative
who, which is commonly considered to be stylistic, is, indeed, much more closely linked to syntax than to stylistics. It will be shown that sentences involving such alterations manifest what Pesetsky 1984 calls SURPRISING ASYMMETRY, and I will defend this claim with the aid of Rizzi's 1990 framework, which elegantly handles Pesetsky's asymmetry. As the discussion advances, it will be demonstrated both that
whom, an overtly morphologically declined counterpart of accusative
who, must somehow have its accusative Case realized, and that it is AGR-O that accomplishes this Case-realization. Furthermore, the work presented below will also elucidate the significance of the distinction between Case-assignment and Case-realization in syntactic theory.
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