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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is certain about
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is certain about" is correct and usable in written English.
You can use it when expressing confidence or assurance regarding a particular fact or situation. Example: "She is certain about her decision to move to a new city for her job."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(4)
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
55 human-written examples
AEMON CANNON is certain about little as he contemplates life after graduation from Santana High School.
News & Media
One thing he is certain about is that if not for Next Street, a four-year-old, 22-employee merchant bank with offices in Boston and New York, his development company would have been in big trouble.
News & Media
What he is certain about is that he intends to surround himself with passionate people.
News & Media
What she is certain about is that she wants to go back to her birth country, Trinidad, to help improve educational opportunities for deaf children.
Formal & Business
One thing is certain about Villegas.
News & Media
But not everyone is certain about Jacobs.
News & Media
But nothing is certain about this tournament.
News & Media
But he is certain about a few things.
News & Media
Hardly anything is certain about the Mets' off-season plans.
News & Media
"What is certain about my character Bill is that he lies all the time.
News & Media
One thing is certain about David Dorfman's "Come, and Back Again": the show has heart.
News & Media
Expert writing Tips
Best practice
Combine "is certain about" with specific details to strengthen your statement. Example: "She is certain about her decision to pursue a career in medicine, having volunteered at the local hospital for years."
Common error
Avoid using "is certain about" without providing context or evidence. A statement like "He is certain about the future" lacks credibility. Instead, be specific: "He is certain about the company's future growth, citing the innovative product line and expanding market share."
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is certain about" functions as a verb phrase expressing a state of strong conviction or assurance. Ludwig AI examples show it is used to indicate a firm belief regarding a specific subject or situation. It often precedes a statement of fact or opinion, lending it authority.
Frequent in
News & Media
75%
Formal & Business
15%
Science
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is certain about" is a grammatically correct and commonly used expression to convey strong conviction or assurance. According to Ludwig AI, it functions to express a firm belief and instill confidence in the listener or reader. The phrase is most frequently found in News & Media contexts, but also appears in Formal & Business and Scientific domains. It's important to use "is certain about" with specific evidence or context to enhance credibility and avoid vagueness. Alternatives include "is sure of" and "is confident in", but the choice depends on the specific nuance you wish to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is sure of
Emphasizes confidence or conviction regarding something.
is convinced of
Highlights a firm belief or persuasion about something.
is confident in
Focuses on having trust or assurance in someone or something.
is positive about
Indicates a strong feeling of assurance or optimism.
has no doubt about
Stresses the absence of uncertainty or hesitation.
is definite about
Implies a clear and unambiguous conviction.
is assured of
Indicates a state of being guaranteed or certain about something.
believes firmly in
Highlights a strong and unwavering conviction.
is unequivocal about
Emphasizes the lack of ambiguity or reservation.
is clear on
Highlights a complete and certain understanding.
FAQs
How can I use "is certain about" in a sentence?
Use "is certain about" to express a strong conviction or assurance regarding something. For instance, "The analyst "is certain about" the company's positive earnings report."
What are some alternatives to "is certain about"?
You can use phrases like "is sure of", "is convinced of", or "is confident in" depending on the context.
What's the difference between "is certain about" and "is sure about"?
While both express confidence, "is certain about" may imply a slightly stronger level of conviction than "is sure about". They are often interchangeable, but "certain" suggests a more definitive assessment.
Is it better to say "is certain of" or "is certain about"?
Both "is certain of" and "is certain about" are grammatically correct and widely used. The choice often depends on personal preference and the specific context, as there's no significant difference in meaning.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested