Simple Future has two different forms in English: "will" and "be going to." Although the two forms can sometimes be used interchangeably, they often express two very different meanings. These different meanings might seem too abstract at first, but with time and practice, the differences will become clear. Both "will" and "be going to" refer to a specific time in the future. Aprenda mais vendo nosso prezi clicando AQUI
You will help him later.
Will you help him later?
You will not help him later.
FORM Be Going To
[am/is/are + going to + verb]
You are going to meet Jane tonight.
Are you going to meet Jane tonight?
You are not going to meet Jane tonight.
Complete List of Simple Future Forms
USO1 - "Will" para expressar uma ação voluntária
"Will" often suggests that a speaker will do something voluntarily. A voluntary action is one the speaker offers to do for someone else. Often, we use "will" to respond to someone else's complaint or request for help. We also use "will" when we request that someone help us or volunteer to do something for us. Similarly, we use "will not" or "won't" when we refuse to voluntarily do something.
I will send you the information when I get it.
I will translate the email, so Mr. Smith can read it.
USO 2 - "Will" para Expressar uma promessa
"Will" é geralmente usado como promessa.
I will call you when I arrive.
If I am elected President of the United States, I will make sure everyone has access to inexpensive health insurance.
USO 3 - "Be going to" - Expressar um plano
"Be going to" expresses that something is a plan. It expresses the idea that a person intends to do something in the future. It does not matter whether the plan is realistic or not.
He is going to spend his vacation in Hawaii.
She is not going to spend her vacation in Hawaii.
A: When are we going to meet each other tonight?
B: We are going to meet at 6 PM.
Uso 4 - "Will" or "Be Going to" - expressar uma previsão
Both "will" and "be going to" can express the idea of a general prediction about the future. Predictions are guesses about what might happen in the future. In "prediction" sentences, the subject usually has little control over the future and therefore USES 1-3 do not apply. In the following examples, there is no difference in meaning.
The year 2222 will be a very interesting year.
The year 2222 is going to be a very interesting year.
John Smith will be the next President.
In the Simple Future, it is not always clear which USE the speaker has in mind. Often, there is more than one way to interpret a sentence's meaning.
No Future in Time Clauses
Like all future forms, the Simple Future cannot be used in clauses beginning with time expressions such as: when, while, before, after, by the time, as soon as, if, unless, etc. Instead of Simple Future, Simple Present is used.fonte:englishpage