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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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have not used

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "have not used" is correct and usable in written English.
It can be used to indicate that something has not been utilized or employed up to the present time. Example: "I have not used this software before, so I might need some assistance getting started."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"We have not used it," she said.

News & Media

Independent

We just have not used it — yet.

News & Media

The New Yorker

We have not used any RF transmitters.

We have not used it yet!

We just have not used it yet.

News & Media

The New Yorker

The Yankees still have not used Rivera this season.

News & Media

The New York Times

But they have not used Dayne like Hampton.

We have not used real estate agents on either one.

News & Media

The New York Times

"Some have not used the good advice available to them.

News & Media

Independent

If you have not used the GRS, register for our Trash or Treasure workshop.

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Expert writing Tips

Best practice

When writing, consider whether the simple past tense ("did not use") might be more appropriate if you are referring to a specific instance in the past rather than a continuing state.

Common error

Avoid using "have not used" when referring to a completed action in the past with a specific timeframe. Instead, use the simple past tense: "I didn't use the car yesterday," not "I haven't used the car yesterday".

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 used" primarily functions as a verb phrase in the present perfect tense, indicating that an action of using something has not occurred up to the present moment. As Ludwig AI indicates, the phrase is perfectly correct.

Expression frequency: Very common

Frequent in

News & Media

48%

Science

24%

Academia

20%

Less common in

Wiki

5%

Formal & Business

2%

Reference

1%

Ludwig's WRAP-UP

In summary, "have not used" is a grammatically sound and frequently employed phrase, as verified by Ludwig AI, used to indicate that something has not been utilized up to the present time. Its prevalence in various sources, including News & Media, Science, and Academia, underscores its versatility. While generally neutral in register, alternative phrasings like "haven't employed" or "did not use" might be more fitting depending on the specific context. Remember to use the simple past tense rather than "have not used" when referring to actions completed in a specified timeframe. The availability of numerous authoritative sources and the phrase's widespread use across diverse contexts highlight its reliability and adaptability in English writing.

FAQs

When should I use "have not used" versus "did not use"?

"Have not used" implies a state extending to the present, while "did not use" /s/did+not+use refers to a completed action in the past. For example, "I have not used that feature yet" versus "I did not use that feature in the previous version".

What are some alternatives to "have not used"?

Depending on the context, you could use alternatives like "haven't employed", "have not utilized", or "never used".

Is it grammatically incorrect to say "haven't used" instead of "have not used"?

No, "haven't used" is a contraction of "have not used" and is perfectly acceptable in informal contexts. "Have not used" might be preferred in formal writing.

What does "have not used" imply about the subject or object?

It implies that the subject had the option or opportunity to use something but chose not to, or that the object has remained untouched or unapplied until the present moment.

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Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: