I am going to learn piano. → She is going to buy a new dress. → We are going to watch a film. → He is going to repair his bike. →

Ответ:

1. I am not going to learn piano.
2. She is not going to buy a new dress.
3. We are not going to watch a film.
4. He is not going to repair his bike.

Чтобы образовать отрицательное предложение с "to be going to", нужно добавить частицу "not" после глагола "to be" (am, is, are).

Ответ: смотри решение

Замечательно! Продолжай в том же духе!