Use of “I Must + Verb” in English Speaking – Rules, Examples and Practice

“I must + verb” is used when you want to say that something is necessary, important, or required. It shows a strong feeling that you need to do something. People often use it in daily conversations about work, studies, health, travel, or personal responsibilities. For example, “I must finish my report today” or “I must call my mother tonight.” Using “must” helps you sound clear and confident when talking about duties and important actions. It is very common in spoken English and can help learners express responsibility naturally in everyday situations.

◎ Important Points

  • Use must to show strong necessity or obligation.
  • Always use the base form of the verb after must.
  • Do not add to after must.
  • The verb does not change after must.
  • Use must not (mustn’t) to show prohibition.
  • “Must” is often used for personal responsibilities.
  • It is commonly used in everyday spoken English.

➤Key Concept

✅ Sentence Structure: Subject + must + base verb + object/complement

Example: I must complete my homework tonight.

Main Concept:
Use must when you feel something is necessary or very important to do.

Speaking Tip:
Use “I must” when talking about your responsibilities to sound more confident and natural.

➤ Common Mistakes To Avoid

Common MistakeWrong ExampleCorrect Example
Using “to” after mustI must to study.I must study.
Using verb with -ingI must studying now.I must study now.
Using past verb after mustI must finished it.I must finish it.
Missing the main verbI must tomorrow.I must go tomorrow.
Using double modal verbsI must can do it.I must do it.

➤ Examples

  1. I must wake up early tomorrow.
  2. I must finish this office work today.
  3. I must call my friend after dinner.
  4. I must drink more water every day.
  5. I must reach the station on time.
  6. I must clean my room this weekend.
  7. I must attend the meeting at 10 a.m.
  8. I must buy some groceries on my way home.
  9. I must submit the project before Friday.
  10. I must learn English every day.

➤ Practice Examples

A. Fill in the Blanks

  1. I must ______ my homework tonight.
  2. I must ______ the train on time.
  3. I must ______ my parents this evening.
  4. I must ______ enough water every day.
  5. I must ______ for the exam tomorrow.

B. Change Incorrect Sentence to Correct One

  1. I must to go now.
  2. I must studying English daily.
  3. I must finished my work.
  4. I must can help him.
  5. I must to call my boss.

C. Speak These Sentences Aloud

  1. I must complete my work before lunch.
  2. I must save money for my future.
  3. I must arrive at the airport early.
  4. I must practice English every day.
  5. I must take care of my health.
I plan to + verb
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Alok Kumar

Alok Kumar is an educational content creator, YouTuber, and English speaker dedicated to helping learners grow with clarity and confidence. Through his engaging videos and easy-to-understand teaching style, he simplifies complex topics and makes learning accessible to a wide audience.

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