I have read the following sentence in an Italian learning tool:
Arrivano ben prima di mezzanotte. (= They arrive well before midnight)
Does that mean that they will arrive well or that they will arrive much earlier than midnight? Given the context and that the sentence refers to the future, I believe that the intended meaning is the latter. However, if the sentence was in the past, the intended meaning would be harder to grasp (eg Sono arrivati ben prima di mezzanotte). Maybe a comma would make a difference ?