'Have To' and 'must' - 6 Minute Grammar

Introduction

This tutorial will help you understand how to use "have to" and "must" in English grammar. These phrases express obligations, but they are used in slightly different contexts. By the end of this guide, you'll be able to use them correctly in your conversations.

Step 1: Understanding "Must"

• Definition: Use "must" when something is necessary according to your opinion or a rule you have set for yourself.
• Examples:
  • I must finish my homework. (It's important to me.)
  • You must wear a helmet while riding a bike. (It's a rule.)

Step 2: Understanding "Have to"

• Definition: Use "have to" when something is necessary due to external obligations, laws, or facts.
• Examples:
  • I have to pay my taxes. (It's a legal requirement.)
  • She has to attend the meeting. (It’s an obligation from her employer.)

Step 3: Using Negatives

• Negating "Must": To express that something is not necessary, use "must not" or "mustn't."
  • Example: You must not smoke here. (It's prohibited.)
• Negating "Have to": To indicate that there is no obligation, use "don't have to."
  • Example: You don’t have to come if you’re busy. (It’s not required.)

Step 4: Understanding Tenses and Pronunciation

• Tenses:
  • "Must" is not typically used in the past tense. Instead, you can use "had to."
    • Example: I had to leave early yesterday.
  • "Have to" changes based on the subject and tense:
    • Present: I have to study.
    • Past: I had to study.
    • Future: I will have to study.
• Pronunciation: Make sure to pronounce "must" clearly. When saying "have to," it can often sound like "hafta" in casual conversation.

Step 5: Practice with a Quiz

To solidify your understanding, consider taking a quiz that tests your knowledge of "have to" and "must." You can find quizzes on grammar websites or practice with exercises that focus on these phrases.

Conclusion

Understanding the difference between "have to" and "must" is crucial for expressing obligations in English. Remember:

• Use "must" for personal or self-imposed obligations.
• Use "have to" for external obligations or laws.
• Practice using negative forms and different tenses to enhance your skills.

To further improve your English, explore additional resources such as quizzes and related grammar videos.