(-) They aren't going to have a wedding.
(?) Are they going to have a wedding?
(-)He isn't going to do sightseeing in the morning.
(?) Is he going to do sightseeing in the morning?
(-) They aren't going to have a wedding.
(?) Are they going to have a wedding?
(-)He isn't going to do sightseeing in the morning.
(?) Is he going to do sightseeing in the morning?