A friend wrote: "I just feel that now is a good time to reiterate that pluralization does not require an apostrophe."
In reply I wrote:
Sometimes it does. "Mind your Ps and Qs" doesn't need them; however "Mind your p's and q's" does.
He replies: "Your p's and q's what?"
I'm 99.9% sure that I don't need to write "need them" at the end of my sentence in order for it to be a complete sentence, but I hate being wrong more than I like to correct people so I just want to make sure.