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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I have not

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "I have not" is correct and usable in written English.
It can be used to indicate the absence of an action or state in the present perfect tense. Example: "I have not finished my homework yet."

✓ Grammatically correct

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I have not moved.

News & Media

The New Yorker

"No, I have not.

News & Media

The New Yorker

I have not.

News & Media

The New York Times

"I HAVE not failed.

News & Media

The Economist

I have not a clue.

News & Media

The New York Times

"I have not met them.

News & Media

The New Yorker

I have not enjoyed tonight.

News & Media

Independent

I have not the key.

I have not bred- In.

News & Media

The New Yorker

I have not been disappointed.

News & Media

The New York Times

But I have not been".

Show more...

Expert writing Tips

Best practice

Use "I have not" when you want to be clear and avoid contractions, especially in formal writing.

Common error

Ensure that the verb following "have" is in the past participle form (e.g., "I have not seen" not "I have not see").

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

91%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I have not" functions as a negative statement in the present perfect tense. It indicates the absence of a completed action or state up to the present moment, mirroring examples found in Ludwig.

Expression frequency: Very common

Frequent in

News & Media

56%

Science

18%

Encyclopedias

9%

Less common in

Formal & Business

6%

Reference

3%

Wiki

2%

Ludwig's WRAP-UP

The phrase "I have not" is a common and grammatically correct construction used to express negation in the present perfect tense. As Ludwig AI confirms, it clearly indicates the absence of an action or state up to the present moment. While often found in news and media, as well as scientific writing, it maintains a neutral to formal register. For alternative expressions, consider options like "I haven't" for casual contexts or "It is not the case that I have" for increased formality. Remember to use the past participle form of the verb after "have" to ensure grammatical accuracy.

FAQs

What's the difference between "I have not" and "I haven't"?

"I have not" is the full form, while "I haven't" is a contraction. "I have not" is more formal and emphatic, while "I haven't" is more casual.

When should I use "I have not" instead of "I did not"?

Use "I have not" when referring to a period up to the present, emphasizing that something hasn't happened yet. Use "I did not" when referring to a completed action in the past.

What can I say instead of "I have not" to sound more formal?

For a more formal tone, you can use phrases like "It is not the case that I have" or "I am not in possession of". Refer to "It is not the case that I have".

Is "I have not" always grammatically correct?

"I have not" is grammatically correct when used with a past participle to form the present perfect tense, indicating that something has not occurred up to the present moment.

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Source & Trust

91%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: