1. Форма глагола: Past Simple; Отрицание: We didn't see a very good film last SundayВопрос: Did we see a very good film last Sunday?2. Форма глагола: Present ContinuousОтрицание: I'm not writing a report nowВопрос: Am I writing a report now?3. Форма глагола: Present PerfectОтрицание: He hasn't come a moment agoВопрос: Has he come a moment ago?