Anonymous Whom is your father? In this particular case, it would be incorrect. " Your father is who.
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AnonymousWhom is your father?In this particular case, it would be incorrect. We're talking about the subject of the sentence, which calls strictly for the nominative, "who."
AvangiEdit. That sounds confusing. "Father" is the subject, but the linking verb makes "who" the same nominative/subjective type, or "case." (It still sounds confusing!)
AnonymousQ2) Whom is your father? (Whom represents the noun complement)The linking verb acts like an equal sign in this structure.