Will / Won’t for Decisions and Offers
We use will and won’t to talk about the future when we:
- make a decision now (at the moment of speaking)
- make an offer to help someone
- make a promise
🧠 We do NOT use “will” for plans we made before. Those use “going to”
Form
| Positive | Negative | Question |
|---|---|---|
| I will call you later. | I will not (won’t) call you. | Will you call me later? |
| She will help us. | She won’t help us. | Will she help us? |
👉 Short forms (contractions) are very common in speaking:
I’ll = I will
He’ll = He will
Won’t = will not
✅ Example sentences:
I’ll help you with your bag.
He’ll call you later.
I won’t forget your birthday.
When do we use will?
💡A. To make a quick decision
We use will when we decide something right now, not before.
| Situation | Example |
|---|---|
| You see the phone ringing | “I’ll answer it!” |
| You’re in a restaurant, choosing food | “I’ll have the pizza.” |
| Your friend says it’s cold | “I’ll close the window.” |
🧠 You didn’t plan this before. You decided now.
💡B. To make an offer
We use will when we want to help someone or say we will do something for them.
| Situation | Example |
|---|---|
| Your friend needs help | “I’ll help you with your homework.” |
| Someone’s carrying heavy bags | “I’ll carry that for you.” |
| Your classmate forgot a pen | “I’ll lend you mine.” |
👉 We often use I’ll when we want to be polite or kind.
💡C. To make a promise
We also use will to promise to do (or not do) something.
| Situation | Example |
|---|---|
| You want to reassure someone | “Don’t worry, I’ll call you.” |
| You promise to study | “I’ll do my homework tonight.” |
| You promise NOT to forget | “I won’t forget your birthday.” |
When do we use won’t?
We use won’t to say:
- you decide not to do something
- or to refuse to do something
| Meaning | Example |
|---|---|
| You decide not to go | “I won’t go to the party.” |
| You refuse to do something | “He won’t clean his room.” |
| You make a negative promise | “I won’t tell anyone.” |
🧠 Won’t is just the short form of will not.
Will vs. Be Going To
| Use | Example with will | Example with be going to |
|---|---|---|
| You decide now | I’ll have the salad. | ❌ |
| You decided before | ❌ | I’m going to have the salad. |
| Offer / promise | I’ll help you. | ❌ |
🧠 “Will” = new decision, offer, or promise
🧠 “Be going to” = plan made before
Summary
| Function | Example Sentence | Meaning |
|---|---|---|
| Quick decision | I’ll open the door. | You decide now. |
| Offer | I’ll carry your bag. | You offer to help. |
| Promise | I’ll study tonight. | You promise something. |
| Refusal / decision not to | I won’t go out. | You decide not to do it. |
Let’s Practice
Practice 1
Speaking
Practice 1
Practice 1
Practice 2
Read the situation and make a decision


