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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 changed

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'have not changed' is correct and usable in written English.
You can use it when referring to the fact that something has remained the same after a period of time. For example, "His feelings for her have not changed since they first met."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

We women have not changed.

News & Media

Independent

"The numbers have not changed.

News & Media

The New York Times

Some things have not changed.

News & Media

The Economist

But things have not changed.

News & Media

The Economist

Their priorities have not changed.

News & Media

The New York Times

"I have not changed.

American tax politics have not changed.

News & Media

The New York Times

But people's questions have not changed.

News & Media

The New York Times

Their formal positions have not changed.

News & Media

The Economist

"We have not changed a thing".

News & Media

The New York Times

The politics of occupation have not changed.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When using "have not changed", ensure the context clearly indicates what is being compared to its previous state. This adds clarity and prevents ambiguity.

Common error

Avoid using "have not changed" when referring to something that was never intended to change. Instead, focus on phrases that highlight consistency or maintenance.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "have not changed" functions as a stative verb phrase, indicating a lack of alteration or modification over time. As Ludwig AI indicates, it is widely used, signifying its established role in conveying unchanged states. The examples provided by Ludwig demonstrate its applicability across various contexts.

Expression frequency: Very common

Frequent in

News & Media

65%

Academia

18%

Science

10%

Less common in

Formal & Business

5%

Encyclopedias

1%

Wiki

1%

Ludwig's WRAP-UP

In summary, the phrase "have not changed" is a grammatically correct and commonly used expression in English, as validated by Ludwig AI. It effectively conveys the idea that something has remained constant over time. Analysis of Ludwig's examples reveals that the phrase is most frequently used in news and media, academic, and scientific contexts, with a neutral register suitable for a variety of writing styles. For situations requiring alternatives, phrases like "remained the same" or "stayed constant" offer similar meanings. To ensure clarity, it's best to use "have not changed" when you clearly define what you are referring to and in cases where the subject was intended to change.

FAQs

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

You can use "have not changed" to indicate that something has remained the same over a period of time. For example, "My opinions "have not changed" since our last discussion."

What's a more formal alternative to "have not changed"?

For a more formal tone, consider using phrases like "remained constant" or "persisted unchanged".

What does it mean when someone says things "have not changed"?

It implies that despite the passage of time or intervening circumstances, the fundamental nature, condition, or status of something remains the same.

Is it correct to say "has not changed" instead of "have not changed"?

Yes, "has not changed" is correct when referring to a singular subject, while "have not changed" is used for plural subjects or with the pronoun "I", "you", "we", or "they".

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Source & Trust

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Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: