No, it's not as simplistic as that. If there is already a verb that exists, it sounds a little strange to make up a new word in the way you're trying to. I'd think you were trying too hard to be clever, or that you didn't actually understand the language very well. I simply suggest more reading, and less looking for "magic tricks". By the way, did you notice the first word in the explanation for "de-" was "undo" and not "de-do"?