Need to / Have to / Must

Need to – shows an action is important and necessary.

1. What do we need to bring?
   ✅ You need to have a swimsuit.
   ❌ You don’t need to wear a cap.
2. Do we need to show ID?
   ✅ Yes, you do.
   ❌ No, you don’t.

Have to – shows an action is important and necessary.

1. What do you have to do?
   ✅ I have to clean my room.
   ❌ I don’t have to finish today.
2. Do you have to go?
   ✅ Yes, I have to. / Yes, I do.
   ❌ No, I don’t (have to).

Not have to – shows an action is not necessary.

1. You don’t have to come.
2. You don’t have to read that.
3. You don’t have to help.

Must – shows an action is important and necessary.

• What must we do?
• ✅ You must try harder.
• ❌ You mustn’t do that again.

Must not – shows an action is forbidden or should not be done.

1. You mustn’t be late.
2. You mustn’t say that!
3. You mustn’t trust him!