The simple future is used:

• To predict a future event: It will rain tomorrow.
• (With I/we) to express a spontaneous decision: I'll pay for the tickets by credit card.
• To express willingness: I'll do the washing-up. He'll carry your bag for you.
• (In the negative form) to express unwillingness: The baby won't eat his soup. I won't leave until I've seen the manager!
• (With I in the interrogative form) to make an offer: Shall I open the window?
• (With we in the interrogative form) to make a suggestion: Shall we go to the cinema tonight?
• (With I in the interrogative form) to ask for advice or instructions: What shall I tell the boss about this money?
• (With you) to give orders: You will do exactly as I say.
• (With you) to give an invitation: Will you come to the dance with me?
• Will you marry me?
  

How do we make the Simple Future Tense?

The structure of the simple future tense is:

For negative sentences in the simple future tense, we insert not between the auxiliary verb and main verb. For question sentences, we exchange the subject and auxiliary verb. Look at these example sentences with the simple future tense:

When we use the simple future tense in speaking, we often contract the subject and auxiliary verb:

For negative sentences in the simple future tense, we contract with won't, like this:

How do we use the Simple Future Tense?

No Plan

We use the simple future tense when there is no plan or decision to do something before we speak. We make the decision spontaneously at the time of speaking. Look at these examples:

• Hold on. I'll get a pen.
• We will see what we can do to help you.
• Maybe we'll stay in and watch television tonight.

In these examples, we had no firm plan before speaking. The decision is made at the time of speaking.

We often use the simple future tense with the verb to think before it:

• I think I'll go to the gym tomorrow.
• I think I will have a holiday next year.
• I don't think I'll buy that car.

Prediction

We often use the simple future tense to make a prediction about the future. Again, there is no firm plan. We are saying what we think will happen. Here are some examples:

• It will rain tomorrow.
• People won't go to Jupiter before the 22nd century.
• Who do you think will get the job?

Be

When the main verb is be, we can use the simple future tense even if we have a firm plan or decision before speaking. Examples:

• I'll be in London tomorrow.
• I'm going shopping. I won't be very long.
• Will you be at work tomorrow?