Well, when you confirm a message you're confirming someone's identity and self-concept. Disconfirming on the other hand is obviously bringing their self-concept down. So when you give messages to people you want to make sure that if you're doing messages either way that you always have actionable items.
Explanation:
hope this helps you if it did please mark brainiest
for #5, you are correct that to come is not a prepositional phrase because there is no object. If I were you, I'd leave it alone and keep the one next it. all others look correct.