grammar moment:sv agreement

Forgive me for using the G. word. Just the mention of it can clear a room but I'm here to tell you, brothers and sisters on the long and twisty road of the writing life, it's just another part of writing. It's helpful to know it well enough so you don't have to think about it. So here's a little grammar moment.

I am not myself a grammarian and I do not worship at the altar of the Grammar God. Fortunately, I have a friend who I will call the Grammar Guru (to protect the guilty) who does. He...