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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
have ascertained that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have ascertained that" is correct and usable in written English.
It can be used when you want to express that you have determined or discovered something through investigation or inquiry. Example: "After thorough research, we have ascertained that the project will require additional funding to succeed."
✓ Grammatically correct
Science
News & Media
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
31 human-written examples
Contrary to traditional approaches, where total stresses are assumed to remain constant, recent studies have ascertained that total stresses in fact change in every direction as fluid extraction/injection disturbs the pore-pressure field and causes deformations.
In a database table, the column reporting this answer would start out with a value of null, and it would not be updated with "zero" until we have ascertained that Juan owns no books.
Wiki
Researchers have ascertained that partnerships which use third party interface show a higher contribution to TB case detection [ 41].
Optimal outcomes have ascertained that the most optimal state of viscosity and thermal conductivity functions happens at the maximum temperature.
Shuttle investigators say they have ascertained that the two-pound foam piece hit the Columbia with more than 1,700 pounds of force.
News & Media
But after a month of spring training, the Yankees have ascertained that they do not have as much depth as they first thought.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
29 human-written examples
After he has ascertained that the ideas make sense, he bows out.
News & Media
Israel was careful to emphasize that it had ascertained that there was no Turkish or Egyptian involvement in the incident.
News & Media
The synod said it had ascertained that Metropolitan Volodymyr was definitely too ill to carry out his duties.
News & Media
By sneaking surreptitious looks at the better-dressed members of my yoga class, I had ascertained that a desirable brand was Prana.
News & Media
Sony product engineers had ascertained that customers preferred pictures with a particular color density, let's call it a nominal density of 10.
News & Media
Expert writing Tips
Best practice
Use "have ascertained that" to convey a sense of thorough investigation and confident conclusion, particularly in formal or scientific writing.
Common error
Avoid using "have ascertained that" in informal contexts. Simpler alternatives like "found out" or "learned" are often more appropriate for casual communication.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have ascertained that" functions as a reporting verb phrase. It introduces a statement of fact or a conclusion that has been determined through investigation or analysis. Ludwig confirms its correct usage.
Frequent in
Science
52%
News & Media
31%
Academia
10%
Less common in
Encyclopedias
3%
Wiki
3%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, the phrase "have ascertained that" is a formal way to indicate that something has been determined or discovered through investigation. Ludwig confirms it's grammatically sound and commonly used in science, news, and academic contexts. While it conveys authority and certainty, be mindful of overusing it in informal situations. Consider alternatives like "have determined that" or "have found out" depending on the context. Remember, this phrase is a strong choice for formal writing when you want to emphasize a well-supported conclusion.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have determined that
Focuses on the act of making a firm decision or conclusion, often after investigation.
have established that
Emphasizes the act of proving or demonstrating something to be true or factual.
have confirmed that
Highlights the verification of something previously uncertain or suspected.
have verified that
Stresses the process of checking or validating the accuracy of information.
have concluded that
Indicates a judgment or decision reached after considering all relevant information.
have discovered that
Emphasizes the finding of something previously unknown or hidden.
have found that
A more general phrase for reporting a discovery or observation.
have learned that
Focuses on the acquisition of knowledge or understanding.
have figured out that
Implies a process of solving a problem or understanding a complex issue.
have understood that
Emphasizes comprehension or grasping the meaning of something.
FAQs
What does "have ascertained that" mean?
The phrase "have ascertained that" means to have discovered or determined something with certainty, usually through investigation or careful examination.
How can I use "have ascertained that" in a sentence?
You can use "have ascertained that" when you want to express that you've reached a definite conclusion after a process of inquiry. For example: "Researchers "have ascertained that" the new drug is effective."
What can I say instead of "have ascertained that"?
You can use alternatives like "have determined that", "have confirmed that", or "have established that" depending on the context.
Is "have ascertained that" formal?
"Have ascertained that" is considered a formal phrase. In less formal contexts, you might prefer "have found out" or "have learned that".
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested