The first time that I ever really thought about the progressive aspect was when I was learning about the imparfait in seventh grade French class.
Verbification is a form of verbification.
I bring these both up because lately I have been thinking about both verbification and the progressive aspect a lot. Specifically, I have been auraing for almost a week, and it is really annoying.
If you read something like the Wikipedia article about migraine auras, you will find that migraine auras typically last for a few minutes. Maybe an hour or two at the outside. But that is not what happens to me. When I start having migraine auras, they can continue for days or weeks.
It is too bad that I can not use my auras as a special power. Aside from forming the present participle of a word that few people need a present particple for.