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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is that certain
Grammar usage guide and real-world examplesUSAGE 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
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
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
Instead, the idea is that certain causal facts non-causally determine the facts about what words refer to.
Science
Another possibility is that certain individuals are immune.
Science
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.
Science
Another reason is that certain ominous dates are fast approaching.
News & Media
What people don't know about Harlem is that certain areas have great demographics, great untapped spending.
News & Media
The truth is that certain aspects of Barney's art do seduce, entertain and inspire me.
News & Media
One thought is that certain crimes neatly encapsulate our fears at a particular time.
News & Media
The result is that certain regions have become ignored and hosts to an underclass.
News & Media
One result of such widespread commercial contacts is that certain currencies acquired special international preeminence.
Encyclopedias
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?"
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.
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.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is that definite
Replaces 'certain' with 'definite', implying a firm and clear state.
is that guaranteed
Substitutes 'certain' with 'guaranteed', suggesting assurance or a promise.
is that assured
Uses 'assured' instead of 'certain', indicating confidence or a firm belief.
is that for sure
Adds 'for sure' to emphasize the confirmation or validation being sought.
can that be confirmed
Changes the structure to a question asking for confirmation instead of assuming certainty.
is that beyond doubt
Emphasizes the lack of uncertainty or questioning.
is there any doubt about that
Poses a question to challenge the certainty of a statement.
are we sure about that
Shifts the focus to the level of sureness or confidence regarding a specific matter.
is that an established fact
Replaces the general certainty with the requirement of an established fact.
is that beyond question
Replaces 'certain' with 'beyond question', suggesting an indisputable truth.
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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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
3.9/5
Expert rating
Real-world application tested