1. How to Use Will to Make Promises
You can use will to mean promise. You can also use promise and will together, but the meaning is clear even if you don’t say promise.
- I’ll finish it by Friday.
- I won’t do that again.
- I promise I’ll do better next time.
2. How to Use Will to Make Spontaneous Decisions
If someone offers you a choice, you can use will to reply. For example, if I ask: Would you like tea or coffee? You can say: I’ll have tea, thanks. Note that this is a decision you haven’t thought about before—it’s a spontaneous decision; not something you’ve thought about or planned.
- Hmm… I like them both, but I’ll take the green one.
- Ice-cream? Ok, I’ll have chocolate, please.
3. How to Use Will to Express Willingness
- He won’t help you, so don’t ask him.
- She’ll do it if you ask her.
You can also use will for things, as in:
- My computer won’t switch on
Note that the meaning of will can be present or future in this case.
4. How to Use Will to make Predictions
You can use will to say what you think is going to happen in the future. For example:
- Who do you think will win the world cup?
- It’ll be warm tomorrow.
- He’ll be late—he always is.
5. A Common Mistake: Don’t Use Will to Talk about Future Plans
If you have already made a plan, and you want to talk about it, you can’t use will. You should use either going to or the present continuous: be + -ing.
- She told me we’re meeting outside the cinema at 8.00. –> NOT
- I’m going on holiday next month—I just bought the tickets. –> NOT
- What are you going to do at the weekend? –> NOT
What will you do…