Quando usar going to em frases sobre ações no futuro

O future with going to (futuro com going to) > certeza ou foi planejada.

be going to (verbo to be + going to) > contextos informais.

Exemplos:

He is not going to invite us. (Ele não nos convidará.)
They said they are going to arrive late. (Eles disseram que chegarão atrasados.)
She told me she is going to travel to London next month. (Ela me disse que viajará para Londres mês que vem.)

Futuro com *going to +* verbo principal (to *play)*
Affirmative	Negative	Interrogativa
I am going to play. You are going to play. He is going to play. She is going to play. It is going to play. We are going to play. You are going to play. They are going to play.	I am not going to play. You are not going to play. He is not going to play. She is not going to play. It is not going to play. We are not going to play. You are not going to play. They are not going to play.	Am I going to play? Are you going to play? Is he going to play? Is she going to play? Is it going to play? Are we going to play? Are you going to play? Are they going to play?

Curiosidade sobre o uso de going to

going to > gonna.

I am going to work out (Vou me exercitar) > I'm gonna to work out.

Quando usar will em frases sobre ações no futuro

future with will (futuro com will) > incerteza.

Exemplos:

Maybe he will not invite us. (Talvez ele não vá nos convidar.)
I think they will arrive late. (Eu acho que eles chegarão atrasados.)
She will probably travel to London next month. (Ela provavelmente viajará para Londres mês que vem.)

WILL > previsão; um futuro que não é totalmente certo.

Exemplos:

It will rain tomorrow. (Amanhã vai chover.)
In the future, people will understand the importance of taking care of the environment. (No futuro, as pessoas compreenderão a importância de cuidar do meio ambiente.)

WILL> decisão é tomada no momento da fala.

Exemplos:

There's no cheese left. I will go to the supermarket to get some more. (Acabou o queijo. Vou ao supermercado comprar um pouco mais.)
She didn't reply my message. I will call her to see if everything's fine. (Ela não respondeu minha mensagem. Vou ligar para ela para ver se está tudo bem.)

Futuro com *will +* verbo principal (to *play)*
Affirmative	Negative	Interrogativa
I will play. You will play He will play. She will play. It will play. We will play. You will play. They will play.	I will not play. You will not play. He will not play. She will not play. It will not play. We will not play. You will not play. They will not play.	Will I play? Will you play? Will he play? Will she play? Will it play? Will we play? Will you play? Will they play?

Diferença entre will e going to

will > incerteza

going to > certeza

PEQUENO TEXTO

Doug: Daniel's birthday is around the corner.

Leroy: Yes, it is. He invited me for the party today morning. He is going to celebrate his birthday next Saturday.

Doug: Really? So I think he will not invite me. I didn't know anything about the party.

Leroy: I am sure he is going to invite you too. He asked me for your phone number to send you a message about it.

Tradução:

Doug: O aniversário do Daniel está chegando.

Leroy: Está sim. Ele me convidou para a festa hoje de manhã. Ele vai comemorar o aniversário dele no próximo sábado.

Doug: Sério? Então acho que ele não vai me convidar. Eu não sabia de nada sobre a festa.

Leroy: Eu tenho a certeza de que ele vai convidar você também. Ele me pediu o número do seu telefone para enviar uma mensagem sobre isso.

QUANDO NÃO SE TEM INFORMAÇÕES PRÉVIAS.

Exemplos:

Hellen bought the plane tickets today. She is going to travel to Rome. (Hellen comprou as passagens hoje. Ela viajará para Roma.)
Hellen bought the plane tickets today. She will travel to Rome. (Hellen comprou as passagens hoje. Ela viajará para Roma.)