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This question already has an answer here:

I'm wondering which option is the right one:

  • Who is he having lunch with?
  • Whom is he having lunch with?
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marked as duplicate by Marcus_33, RegDwigнt May 28 '13 at 19:18

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Thank you for the link; unfortunately, it doesn't help because I've already verified different sources of grammar, and I therefore would automatically say "WHOM is he ...". But in one of my "Business English Workbooks" it says "WHO is he ..." So I'm confused, and I'm wondering whether both is possible? – Susan P. May 28 '13 at 18:51


  • Who is he having lunch with?
  • With whom is he having lunch? [formal/archaic]
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Also Whom is he having lunch with? [formal]. – John Lawler May 28 '13 at 19:45
@Marcus_33: Thank you; this answer (which I indeed overlooked when searching the forum) is not only helpful concerning my specific issue but also interesting with regard to this hypercorrection subject. – Susan P. May 28 '13 at 20:15
@Red Sissy/@John Lawler: Thanks a lot for your answers, too, which definitely helped me out of a fix! :-) – Susan P. May 28 '13 at 20:22

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