I know that the word "who" can both refer to a singular or a plural noun. The thing that makes me confused is the word "you" in the following sentences. Should it be followed by a singular or a plural verb? Haven't had any luck in searching for the precise answer. Thank you!
I think this should be Who among you watches this show?
Who is the subject and takes the singular verb, among you is a prepositional phrase and you is not actually the subject of the verb.
It's similar to Who in the world likes pumpkin? I realize that many people (not me) do, but still ask the question with Who likes...
Imagine an all right after the who as in:
Who among you all watch this show?
They aren't referring to a singular you rather a plural.
Both are correct. The phrase who among you is somewhat formal and old-fashioned. You're more likely to see it in books written in centuries past, and if you do hear it, it will probably be out of the mouth of a preacher standing at the pulpit, not from the presenter at a TED-talk.
But let's make it contemporary anyway:
Who among you has seen Jurassic Park?
Who among you are Tottenham fans?
Both can be correct but treating "who" as singular is more common:
"Who among you watches"... (154 Google hits)
"Who among you watch"... (12 Google hits)
