Who or Whom? which would be correct?

[freeradical]

tuqqer wrote:
[quote=Mr Downtown]
If not preceded by a comma, who introduces a restrictive clause and is correct.

If there were a comma preceding, whom would introduce a parenthetical clause, in which it would be the object.

One of these days (not in this lifetime) I will take the time to understand what things like restrictive clause, premodifiers/postmodifiers, and noun adjuncts actually mean. I always admire those who actually learned all this, instead of using "sounds right!" as the way to construct sentences.

Yeah, I'm putting this on my "to do" list as well...