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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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have not found

Grammar usage guide and real-world examples

USAGE SUMMARY

"have not found" is correct and usable in written English.
You can use it to talk about something you have been searching for and haven't been able to locate. Example: I have been looking for my car keys for hours, but I have not found them yet.

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

We still have not found my brother.

News & Media

The New York Times

I have not found a balance yet".

News & Media

The New York Times

They have not found hot springs.

News & Media

The New York Times

I have not found it to be a comfortable experience.

News & Media

The Guardian

I have not found any difficulties being a woman.

News & Media

The Guardian

We have not found a conflict of interest".

News & Media

The New York Times

I have not found it like that at all.

News & Media

The Guardian

American military forces have not found any buried mobile labs.

News & Media

The New York Times

"But we have not found our ultimate speed.

News & Media

The New York Times

"They have not found lakes or rivers flowing on Mars.

News & Media

The New York Times

But we just have not found that yet".

News & Media

The Guardian
Show more...

Expert writing Tips

Best practice

When using "have not found", ensure the tense is consistent with the rest of the sentence. For example, "Although I have searched extensively, I have not found any evidence."

Common error

Avoid switching tenses mid-sentence when using "have not found". For example, instead of saying "I have not found it yet, but I will keep looking", say "I have not found it yet, but I will keep looking."

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "have not found" functions as a verb phrase within a sentence. It typically indicates a lack of discovery or location after a period of searching or investigation. Ludwig AI confirms its proper usage in diverse contexts.

Expression frequency: Very common

Frequent in

News & Media

37%

Science

55%

Encyclopedias

3%

Less common in

Formal & Business

2%

Reference

1%

Social Media

0%

Ludwig's WRAP-UP

"Have not found" is a grammatically sound phrase used to express the absence of something after a search or investigation. Ludwig AI affirms its correctness, with examples from various authoritative sources such as The New York Times, The Guardian, and scientific journals. Its neutral register makes it suitable for diverse contexts, with the most frequent occurrences in scientific and news-related content. While alternatives like "haven't located" or "have been unable to find" exist, "have not found" remains a common and versatile choice for conveying a lack of discovery or location.

FAQs

How can I use "have not found" in a sentence?

You can use "have not found" to indicate that you have been searching for something but have not yet located it. For example, "I have been looking for my keys all day, but I "have not found" them yet."

What are some alternatives to "have not found"?

Some alternatives to "have not found" include "haven't located", "have been unable to find", and "have not discovered". The best choice depends on the specific context.

Is it correct to say "haven't found" instead of "have not found"?

Yes, "haven't found" is a common contraction of "have not found" and is perfectly acceptable in most contexts, especially informal ones. Both phrases are grammatically correct.

What is the difference between "have not found" and "did not find"?

"Have not found" implies a search process that is still ongoing or has recently concluded without success. "Did not find" suggests a completed action in the past with a negative result.

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Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: