Cool MateI'm not vs Not at all
When to use each in English, with meaning, register, and examples.
I'm not
High-frequency chunk
Not at all
Top 2,000 (common)
Most common: I'm not
| I'm not | Not at all | |
|---|---|---|
| Pronunciation | 🇬🇧 //aɪm nɒt//🇺🇸 //aɪm nɑt// | 🇬🇧 //nɒt æt ɔːl//🇺🇸 //nɑt æt ɔl// |
| Meaning | A phrase used to say that you are not something. | not even a little bit |
| Example | I'm not going to the party tonight. | I didn't like the movie, not at all. |
| Register | Neutral | Neutral |
| How common | High-frequency chunk | Top 2,000 (common) |
| Collocations | I'm not sure, I'm not interested, I'm not going | not at all worried, not at all surprising, not at all offended |
| Antonyms | - | at all, somewhat, partially |
| Common mistakes | Confused with 'I am not' - 'I'm not' is a contraction., 'Not I'm' is incorrect - the correct form is 'I'm not'. | Confusing with 'not really' which is less absolute., Using it in formal contexts where a less emphatic phrase is better., Omitting it when it's necessary for clarity. |
| Usage notes | Use 'I'm not' to express disagreement or rejection. It's common in both spoken and written English but may sound informal in very formal settings. | Use 'not at all' to emphasize complete disagreement or absence. It's appropriate in both spoken and written contexts but less common in formal writing. |
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Frequently asked questions: I'm not vs Not at all
What's the difference between I'm not and Not at all?
I'm not: A phrase used to say that you are not something. Not at all: not even a little bit
Which is more common: I'm not and Not at all?
I'm not is the most common in everyday English.
Can you show an example of each?
I'm not: I'm not going to the party tonight. Not at all: I didn't like the movie, not at all.
Can I use I'm not and Not at all interchangeably?
Not always. I'm not and Not at all 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.