Grammar: Future Predictions
B1 Lesson 18: 'Will' vs. 'Be Going To'
Two Ways to Predict the Future
In English, both will and be going to can be used for predictions, but they are used in different situations. The choice depends on why you are making the prediction.
Use will for predictions based on your personal opinion, belief, or general knowledge. It's what you think will happen.
Example: I think Cambodia will win the match tonight. They are a good team.
Use be going to when you have present evidence—something you can see, hear, or feel—that makes you believe something is about to happen.
Example: Look at those dark clouds! It's going to rain soon.
The Grammar Rule 📖
Summary of Future Predictions
Type of Prediction | Grammar Form | Example |
---|---|---|
Based on opinion or belief | Subject + will + Verb | I think you'll like this movie. |
Based on present evidence | Subject + be + going to + Verb | The driver is going too fast. He's going to crash! |
In Conversation
Let's see how this works in a real situation.
Practice Your Grammar 🎯
Exercise: Choose the Correct Future Form
Choose the best future form ('ll / will or 'm / is / are going to) for each situation.
- My sister studied very hard. I know she _________ pass the exam.
→ is going to (Evidence: her studying) - In the year 2050, I believe people _________ travel to Mars.
→ will (Opinion/Belief about the distant future) - Be careful! You're holding too many books. You _________ drop them!
→ are going to (Evidence: you can see the situation) - A: What do you think about the new cafe? B: I think it _________ be very popular.
→ will (Opinion)
Your Grammar Mission ⭐
Make Your Predictions
For each situation below, write two predictions: one based on your opinion (will) and one based on evidence (be going to).
Situation: The Cambodia National Football Team is playing a match tonight.
- Your opinion: I think they...
- Evidence you see (e.g., their best player is injured): Oh no, their best player isn't playing. They...
Key Vocabulary
- Prediction A statement about what you think will happen in the future.
- Evidence The facts or signs that make you believe something is true.
- Opinion A personal belief or judgment that is not founded on proof or certainty.