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.

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Let’s Practice

Practice 1

Speaking

Practice 1

Practice 1

Practice 2

Read the situation and make a decision