There are cases where do/does/did must be used in questions with have. In these cases, have has a special meaning such as to eat, to drink, must etc. Do you have to go now?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
AnonymousCan I say "Have I to go?" or "Has she to come?" instead of "Do I have to go?'' or "Does she have to come?"?Yes. However, the ones without do sound rather old-fashioned and are more characteristic of BrE than AmE.