Mary: You have a delightful way with the language to get your points across. If insecure about your comprehension of grammatical rules, take heart in that the original point of this entire thread is that most people also aren't watching the rules very carefully.
If any of your classes are in English, writing or even linguistics, I'm sure you'll do quite fine.
If any of your classes are in English, writing or even linguistics, I'm sure you'll do quite fine.