We use “I promise to + verb” when we give our word to do something. It shows strong intention and responsibility. It is more serious than saying “I will.”
For example, if your friend is worried, you can say, “I promise to call you.” If you made a mistake, you can say, “I promise not to be late again.”
When we use “I promise not to + verb,” we are saying we will not do something in the future.
This expression is common in daily life—at home, in the office, with friends, and in relationships. It makes your English sound more natural and trustworthy.
◎ Important Points
- Use promise to + base verb (no “-ing” form).
- Do not use “will” after promise.
- Use not before the verb to make it negative.
- “Promise” shows strong commitment.
- You can use it in formal and informal situations.
- Always follow “to” with the base form (go, call, finish).
- It is often used when someone is worried or upset.
➤Key Concept
✅ Sentence Structure: Subject + promise + (not) + to + base verb
Example:
I promise not to forget your birthday.
Main Concept (Simple Explanation):
After “promise,” always use to + base verb. Add not before “to” for negative meaning.
Speaking Tip:
When saying “promise,” stress the first syllable: PRO-mise. It sounds more natural and confident.
➤ Common Mistakes To Avoid
| Common Mistake | Wrong Example | Correct Example |
|---|---|---|
| Using “will” after promise | I promise I will call you. | I promise to call you. |
| Using verb + ing | I promise to helping you. | I promise to help you. |
| Wrong negative position | I promise to not be late. | I promise not to be late. |
| Missing “to” | I promise call you. | I promise to call you. |
| Using past verb after “to” | I promise to went there. | I promise to go there. |
➤ Examples
- I promise to finish the report today.
- I promise not to tell anyone your secret.
- I promise to help you move this weekend.
- I promise not to be late again.
- I promise to study harder for the exam.
- I promise not to forget our meeting.
- I promise to pay you back tomorrow.
- I promise not to make the same mistake.
- I promise to call my parents tonight.
- I promise not to disturb you at work.
➤ Practice Examples
A. Fill in the Blanks (5)
- I promise ___ call you later.
- She promises not ___ be angry again.
- We promise ___ finish the work on time.
- I promise not ___ forget your advice.
- He promises ___ improve his English.
B. Correct the Sentence (5)
- I promise I will help you.
- I promise to helping my friend.
- I promise not tell lies.
- She promise to come early.
- I promise to not waste time.
C. Speak Aloud Practice (5)
Say these sentences clearly and confidently:
- I promise to do my best.
- I promise not to give up.
- I promise to be honest.
- I promise not to complain.
- I promise to improve my English every day.



