ROFL! I think I have a good grasp of my apostrophes, but can I make a true confession here? I have absolutely no idea what a subjunctive is!
Well, here's an example: DD brought home a worksheet with a paragraph on it to read. The title was, "If I Was Invisible."
The paragraph went on at some length repeatedly using the phrase, "If I was invisible, I would <fill in the blank>." Now I
know that this is acceptable colloquial speech but it still irked me that this worksheet seemed bent on teaching kids the colloquial construction instead of the proper construction, "If I
were invisible, I would etc." So I (in what I thought was a helpful way) pointed it out to DD's teacher....who became quite angry with me. In order to mend fences I had to do some major apologizing! So here I am at grammarians anonymous.