I find myself questioning it all the time. I have a grammar book that I keep by my computer. On bad cognitive days it is rough to remember all the little rules. Heck, I sometimes forget how to spell simple words. LOL.

I do need to go for a refresher course. I'm thinking of doing it this summer as I already missed registration.

Congrats on the test!!! That's fantastic. More proof that you should be so proud of yourself for what you are doing.