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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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is that certain

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is that certain" is not standard in written English and may cause confusion.
It could be used when questioning the certainty or reliability of a statement or situation, but it is better to rephrase for clarity. Example: "I understand your point, but is that certain?"

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

The basic idea is that certain Nokia devices will include unlimited music downloads for a year.

News & Media

TechCrunch

Instead, the idea is that certain causal facts non-causally determine the facts about what words refer to.

Science

SEP

Another possibility is that certain individuals are immune.

Science

Plosone

One possibility is that certain dietary variables may have substantial impacts only when nutritional deficiencies are severe.

Another possibility is that certain nucleotide transferases become activated under hypoxia and add nucleotides to certain miRNAs.

Another reason is that certain ominous dates are fast approaching.

News & Media

The New York Times

What people don't know about Harlem is that certain areas have great demographics, great untapped spending.

News & Media

The New York Times

The truth is that certain aspects of Barney's art do seduce, entertain and inspire me.

One thought is that certain crimes neatly encapsulate our fears at a particular time.

News & Media

The New York Times

The result is that certain regions have become ignored and hosts to an underclass.

One result of such widespread commercial contacts is that certain currencies acquired special international preeminence.

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Expert writing Tips

Best practice

To enhance clarity when using the phrase "is that certain", consider rephrasing to specify what aspect you're questioning. For example, instead of saying "The outcome is positive, but is that certain?", try "The outcome is positive, but is that outcome guaranteed?" This provides a more direct focus for your inquiry.

Common error

Avoid using "is that certain" when you actually mean "is that true" or "is that correct". Certainty relates to the confidence in a statement, whereas truth and correctness relate to the accuracy of the information. Make sure your question matches the intent. Example: Instead of "The report says profits increased, but is that certain?" (if questioning the figures), use "The report says profits increased, but is that accurate?"

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

3.9/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is that certain" functions primarily as an interrogative expression. It's used to question the validity or reliability of a statement, situation, or prediction. As demonstrated by Ludwig, the phrase is often used in contexts where there's doubt or a need for reassurance.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

30%

Encyclopedias

10%

Less common in

Formal & Business

7%

Wiki

7%

Social Media

6%

Ludwig's WRAP-UP

In summary, the phrase "is that certain" is a versatile interrogative expression used to question the validity, reliability, or guarantee of a statement or situation. While grammatically acceptable, Ludwig indicates the phrase may cause some minor confusion, which can be mitigated by providing context or specifying the aspect being questioned. Found frequently in News & Media and Scientific contexts, the phrase maintains a neutral tone. When crafting content, it's useful to replace it with synonyms like "is that definite" or "is that guaranteed" based on intent. Overall, understanding the nuances of "is that certain" allows for its effective use in writing and communication.

FAQs

How can I use "is that certain" in a sentence?

You can use "is that certain" to express doubt or ask for confirmation about a statement or situation. For example, "They said they'll deliver it tomorrow, but "is that certain"?"

What can I say instead of "is that certain"?

You can use alternatives like "is that definite", "is that guaranteed", or "are you sure about that" depending on the context.

Which is correct, "is that certain" or "is that for certain"?

"Is that certain" is generally more common and grammatically standard. "Is that for certain" is also used, but might be considered slightly more informal or emphatic.

What's the difference between "is that certain" and "are you certain"?

"Is that certain" questions the validity or reliability of information or a situation, while "are you certain" directly questions the speaker's confidence or belief in something.

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Source & Trust

84%

Authority and reliability

3.9/5

Expert rating

Real-world application tested

Most frequent sentences: