Quando você quer dizer que vai fazer algo no futuro e expressar certeza disso, pode-se usar tanto o 'present continuous' quanto a forma com 'going to' e, na prática, não há nenhuma mudança no sentido pretendido. Veja exemplos: A. I am going to meet my friends tonight.= I am meeting my friends tonight.= Vou encontrar meus amigos esta noite. B. We are going to have a party on Sunday.= We are having a party on Sunday.= Vamos fazer uma festa no domingo. C. He is going to leave tomorrow.= He is leaving tomorrow.= Ele vai embora amanhã.

1. What is going to happen in the
future?
■ We are all going to live on the moon.
– Are we all going to live on the moon?
■ We are not gonna have robots in our home.

2. Are you optimistic or pessimistic
about the future?

3. Going to
Prediction
■ What is going to
happen?
Intention
■ What are you going to do?
■ What are your intentions?
■ What are your plans?
We are all going to live on the moon.
I’m gonna be rich.
I’m going to be a pet psychologist.

4. Future
Going to
■ Most common way to refer to the
future.
■ Intention
Present Continuous
(+ing)
I‘m meeting my friends on Saturday evening.
I‘m going to meet my friends on Saturday evening.

5. Future
GT
■ What are you going to drink?
■ I’m going to have a drink with Jill
after the film.
■ She’s not going to borrow my car.
PC
■ What are you drinking?
■ I’m having a drink with Jill after
the film.
■ She’s not borrowing my car.