Will vs Going to — Plans, Decisions & Promises
B1 — grammar, listening, reading, writing
Sofía: In December I'm going to travel to Cartagena. Tickets: bought. Hotel: booked. Spreadsheet: ready.
Ben: Sounds fun! You know what? I'll go with you! Decided. Just now.
Kenji: And that is exactly the difference. Sofía planned it — Ben just decided it this second.
Abuela Carmen: And I will always be here waiting... with soup. That's a promise.
Common mistake: “Look at those clouds — it will rain.” — Correct: “Look at those clouds — it's going to rain.”
Use 'going to' for plans you already made and predictions you can see coming; use 'will' for decisions made right now, opinions about the future, and promises.
will vs going to — who decides, and when?| Situation | Form | Example |
|---|
| Plan already made | going to | I'm going to travel in December (tickets bought) |
| Decision right now | will ('ll) | You know what? I'll go with you! |
| Prediction with evidence | going to | Look at those clouds — it's going to rain |
| Prediction from opinion | will (I think...) | I think Colombia will win |
| Promise / offer | will / won't | I'll help you. I won't tell anyone. |
| Negatives | won't · am/is/are not going to | We aren't going to cook tonight |
- I'm going to travel to Cartagena in December — I bought the tickets.
- You know what? I'll go with you! Decided. Just now.
- I think Colombia will win tomorrow.
- Look at those clouds — it's going to rain.
- I'll always remember this trip.
- I won't tell anyone. I promise.
- We aren't going to cook tonight; the fridge is empty.
- It won't be easy, but we'll try.
- Will you help me with this exercise?
- What are you going to do in December?
- Do you think it will rain tomorrow?
- Will you come to the party? Yes, I will.
- Are you going to study tonight? No, I'm not.
- Will it rain? I think it will.
Practice
- The phone is ringing! — Don't worry, I ___ answer it. (will, am going to, going to)
- Look at those clouds. It ___ rain. (will, is going to, won't)
- I bought the tickets. We ___ travel in December. (are going to, will, would)
- I think our team ___ win tomorrow. (is going to, won't, will)
- 'Will' is used for decisions made at the moment of speaking.
- 'Going to' is only for predictions without evidence.
- I promise I ___ (not / tell) anyone.
- She ___ (be) going to study medicine — she has already chosen the university.
- You know what? I ___ (help) you right now.
- Unscramble: I, think, it, will, rain, tomorrow
- Unscramble: are, you, going, to, tell, her
- Find the mistake: Look at those clouds — it will rain.
- Find the mistake: We will to travel in December.
- Find the mistake: I don't will tell anyone.
- I will study tonight. — Write the negative form.
- They are going to move to Cali. — Write the yes/no question.
- Will you come to my party? — Answer with a short answer (Yes).
- It's going to rain. — Write the negative form.
- She won't pass the exam. — Write the affirmative form.
- Will you practice English tomorrow? (short answer)
- Are you going to sleep early tonight? (short answer, No)
Listening
Sofía: OK, December trip. I'm going to book the boat tour tomorrow.
Ben: I'll carry all the bags! I'm strong and reliable.
Kenji: I think you'll drop the bags in the sea, Ben.
Ben: That happened one time!
Abuela Carmen: Children, I'll make the sancocho for the trip. And Ben — you aren't going to carry the pot.
Ben: ...Fair. That's fair.
Reading
Ben's New Year plan, written in his notebook: 'This year is going to be different. I'm going to learn salsa — I have already paid for ten classes. I'm going to save money for a new camera. And I'm not going to lose my phone again.' Under the plan, there is a phone number and a note in different ink: 'Kenji, if you find this notebook, I'll buy you dinner. I lost it on the bus. Again. Some things will never change.'
- Ben is going to learn salsa.
- He has already paid for the classes.
- Ben is going to buy a new phone.
- Kenji wrote the New Year plan.