Interrogative use of perhaps/maybe
Is it technically incorrect to use “maybe” in an interrogative sentence? Or to make an indefinite statement (with “maybe” or “perhaps” in it) interrogative?
‘Maybe we just need to add some more salt?’ -- Is it incorrect to use a question mark here? Technically, I guess, it’s a statement, so it shouldn’t take a question mark, but in natural speech it can come across as a question (you’re *asking* if we should use more salt) and a question mark at the end can reflect this. But maybe that’s just plain wrong? (â† Like this.)
Actually, that’s not a great example... What I really want to know is whether or not it is always incorrect to use “maybe/perhaps” interrogatively in formal written English.