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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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it is not certain

Grammar usage guide and real-world examples

USAGE SUMMARY

"it is not certain" is a correct and usable phrase in written English.
You can use it when something is uncertain or unclear. For example, "It is not certain whether the new policy will improve the company's profits."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

While TAAR1 is inactivated in dogs, it is not certain that its function has been lost.

It is not certain where the garden had its beginnings.

News & Media

The New Yorker

It is not certain.

News & Media

The Guardian

It is not certain to win.

News & Media

The Economist

It is not certain it will succeed.

News & Media

The Economist

But it is not certain they will.

News & Media

The Guardian

But it is not certain that it would.

It is not certain when it would happen.

News & Media

The New York Times

It is not certain that they will next time.

News & Media

The Economist

It is not certain Canada would agree to that.

News & Media

Independent

It is not certain that any now do.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

When conveying uncertainty, use "it is not certain" to introduce a statement and follow it with a clear explanation of what is uncertain and why. This adds clarity and context for the reader.

Common error

Avoid overuse of passive constructions with "it is not certain". While grammatically correct, excessively relying on passive voice can make your writing sound weak. Instead, consider rephrasing to use a more direct and active construction where appropriate.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "it is not certain" functions as a hedge or qualifier, expressing a lack of definitive knowledge or assurance. It is commonly used to introduce a statement where the speaker or writer wishes to avoid making an absolute claim. This is supported by Ludwig AI, which confirms its correct usage. Many examples across various sources illustrate this function.

Expression frequency: Very common

Frequent in

News & Media

60%

Science

23%

Encyclopedias

5%

Less common in

Wiki

3%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "it is not certain" is a grammatically sound and highly versatile phrase used to express uncertainty across a spectrum of contexts. Ludwig AI validates its correctness and widespread applicability. Predominantly found in News & Media and Scientific domains, its neutral register makes it suitable for both formal and informal communication. When employing this phrase, clarity is key: explicitly stating what remains uncertain enhances the effectiveness of your communication. Although "it is not certain" is correct, consider a more direct and active construction to avoid overusing passive voice and improve the overall strength of your writing.

FAQs

What does "it is not certain" mean?

The phrase "it is not certain" indicates a state of uncertainty or doubt about a particular outcome, fact, or event. It suggests that the truth or the future is unknown or unpredictable.

How can I use "it is not certain" in a sentence?

You can use "it is not certain" to introduce a statement where you want to express doubt or a lack of definite knowledge. For example, "It is not certain if the project will be completed on time."

What are some alternatives to "it is not certain"?

Alternatives to "it is not certain" include phrases like "it is not definite", "it is not sure", or "the outcome is uncertain". These options offer similar meanings but can vary slightly in tone or emphasis.

Is there a difference between "it is not certain" and "it is uncertain"?

While similar, "it is not certain" focuses on the lack of certitude, whereas "it is uncertain" emphasizes the state of being unpredictable or unknown. The choice depends on the specific nuance you want to convey.

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Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: