1. My mother is/isn't a doctor. Is your mother a doctor? My mother was/wasn't a doctor. Was your mother a doctor? My mother will be/won't be a doctor. Will your mother be a doctor? 2. His children are/aren't smart. Are his children smart? His children were/weren't smart. Were his children smart? His children will be/won't be smart. Will his children be smart?
2. His children are/aren't smart. Are his children smart? His children were/weren't smart. Were his children smart? His children will be/won't be smart. Will his children be smart?