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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
can know with certainty
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "can know with certainty" is correct and usable in written English.
It can be used when expressing a strong belief or assurance about a fact or situation. Example: "After reviewing all the evidence, I can know with certainty that the project will be completed on time."
✓ Grammatically correct
News & Media
Science
Academia
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
13 human-written examples
I doubt that we can know with certainty just what Iraqis may most yearn to enjoy.
News & Media
"No one can know with certainty whether parents should prevail 20percentt or 50percentt of the time," Mr. Green said.
News & Media
Yet charities chip away, and last week the Prison Reform Trust issued a summary of what we can know with certainty.
News & Media
Your code further confuses the issue by describing "ambiguous behavior" that "may be offensive whether or not it is harassment". No reasonable person can know with certainty precisely what speech is proscribed.
By acknowledging the limits of what we can know with certainty, we open ourselves up to a wider horizon of experience.
Science
But none of us has direct access to the criminal investigation, and until the full evidence is presented, none of us can know with certainty what did or did not happen.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
"None of us can know with any certainty what might have stopped those shots from being fired, or what thoughts lurked in the inner recesses of a violent man's mind".
News & Media
Incumbents can't be certain how or what these manufacturers will add to enter their markets, but they can know with absolute certainty that the disruptors are motivated to.
News & Media
On the Court's own test, the issue is whether Barenblatt can know with sufficient certainty, at the time of his interrogation, that there is so compelling a need for his replies that infringement of his rights of free association is justified.
Academia
What might be described as the myth of perfect democracy underlies not just a good deal of the nonsense of the past few weeks, but also many of the potential problems ahead.Begin with a simple fact: there is no way that any mortal can know with absolute certainty what the real result of this election was.
News & Media
Here are some reasons why we can know with some certainty that the secular bear market is not over.
News & Media
Expert writing Tips
Best practice
Use "can know with certainty" to express a firm belief based on evidence or established knowledge. Be mindful of overstating claims, especially in fields where absolute certainty is difficult to achieve.
Common error
Avoid using "can know with certainty" when the situation involves predictions or subjective opinions. Reserve it for cases where the evidence strongly supports the conclusion.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "can know with certainty" functions as an epistemic modal phrase, expressing a high degree of confidence in the possibility of knowing something. Ludwig AI confirms its correct usage in written English.
Frequent in
News & Media
32%
Science
32%
Academia
21%
Less common in
Encyclopedias
8%
Wiki
3%
Formal & Business
2%
Ludwig's WRAP-UP
The phrase "can know with certainty" is a common and grammatically correct expression used to indicate a strong belief or assurance about a fact or situation. It appears frequently in News & Media, Science and Academia. As Ludwig AI highlights, this phrase is acceptable in written English when expressing confidence based on solid evidence. When using this phrase, be mindful of the context and avoid overstating claims, as true certainty is often elusive. Alternatives such as "can be absolutely sure" or "can be completely certain" can be used to convey similar meanings with slight variations in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
can be completely certain
Similar to "can be absolutely sure", highlighting total confidence.
can be absolutely sure
Emphasizes absolute assurance rather than just certainty. Intensifies the level of confidence.
can establish beyond doubt
Highlights the removal of any doubt, stressing the strength of the evidence.
can ascertain with confidence
Replaces "know" with "ascertain", making it more formal and emphasizing the process of finding something out.
can determine definitively
Focuses on definitively establishing something, emphasizing a final and conclusive decision.
can say with conviction
Shifts the focus to the speaker's strong belief and confidence in their statement.
can affirm with assurance
Similar to "can say with conviction", highlighting the speaker's confidence.
can guarantee with confidence
Suggests a guarantee, implying a very high level of certainty and responsibility.
can predict with confidence
Focuses on the ability to predict a future event with a high level of certainty.
can be positive about
Indicates a feeling of confidence and optimism about something, often a future outcome.
FAQs
What does "can know with certainty" mean?
The phrase "can know with certainty" implies a strong level of confidence in the accuracy or truth of something, based on available evidence or understanding. It suggests that there is little to no doubt about a particular fact or outcome.
When is it appropriate to use the phrase "can know with certainty"?
Use "can know with certainty" when you have solid evidence or logical reasoning to support your claim. It's best suited for situations where there is a high degree of reliability and minimal chance of being wrong.
What are some alternatives to "can know with certainty"?
You can use alternatives like "can be absolutely sure", "can be completely certain", or "can ascertain with confidence" depending on the context.
Is "can know with certainty" the same as "is certain"?
While similar, "can know with certainty" emphasizes the ability to know something with confidence, whereas "is certain" simply states that something is definitely true. The former implies a basis for the certainty, while the latter is a statement of fact.
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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