What is the correct grammar for a sentence such as the following:
"If you or somebody you know is an experienced such-and-such, please contact us."
"If you or somebody you know are an experienced such-and-such, please contact us."
I primarily want to know which of "are" or "is" is the appropriate verb.
My hunch is that "you or somebody you know" can be substituted by a plural pronoun, which makes the verb "are"; but I am thrown off by "if somebody you know are" (which is wrong, I think - or at least it sounds wrong), and I don't know what the rule is.
There is also the rule that Telastyn states below - choose a verb as if one of the options was chosen. However, "you or somebody you know" is two singular options, but "are" is used with singular "you" while "is" is used with other singular subjects, and so they conflict. That's where my confusion lies (or is my confusion deeper -- are "you" and "somebody" actually subtly plural here?)