Cool MateI have to vs Must
When to use each in English, with meaning, register, and examples.
I have to
High-frequency chunk
Must
High-frequency chunkA1
| I have to | Must | |
|---|---|---|
| Pronunciation | 🇬🇧 //aɪ hæv tə//🇺🇸 //aɪ hæv tə// | 🇬🇧 /["/məst//mʌst/","/ˈmʌsnt/"]/🇺🇸 /["/məst//mʌst/","/ˈmʌsnt/"]/ |
| Meaning | I must do something | Something that is necessary or very important. |
| Example | I have to finish my homework before dinner. | You must finish your homework before playing outside. |
| Register | Neutral | Neutral |
| How common | High-frequency chunk | High-frequency chunk |
| CEFR level | - | A1 |
| Collocations | I have to go, I have to say, I have to do | must see, must do, must have, must remember |
| Antonyms | - | can, may, might |
| Common mistakes | Confusing with 'I have' without 'to'., Using 'haves' instead of 'have' with 'I'. | Using 'must' in situations where 'have to' is more suitable., Confusing 'must' with 'might' or 'may', which imply possibility instead of necessity., Using 'must' with the gerund form instead of the base form of the verb. |
| Usage notes | Use this phrase when expressing necessity or obligation. It fits well in both spoken and written contexts. | Use 'must' when giving strong advice or making strong recommendations. Avoid using it in casual conversations where 'should' might be more appropriate. |
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Frequently asked questions: I have to vs Must
What's the difference between I have to and Must?
I have to: I must do something Must: Something that is necessary or very important.
Can you show an example of each?
I have to: I have to finish my homework before dinner. Must: You must finish your homework before playing outside.
Can I use I have to and Must interchangeably?
Not always. I have to and Must are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.