I've just studied そう (as in: seems like; about to) in class and I wanted to know why you can use some verbs and not others.
For instance, 雨が｛あめが｝降りそう｛ふりそう｝ works out semantically and grammatically, as does 落ちそう｛おちそう｝. But why doesn't a verb like 治る｛なおる｝ work (治りそう)? My teacher said that it's grammatical but it doesn't make sense.
Is it something about lexical aspect? Or is it a specific class of verbs, like 'break'/'hit' verbs, for example?
I've done some digging but I'm not sure what to look up next. Any help would be appreciated.