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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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have ascertained that

Grammar usage guide and real-world examples

USAGE 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

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.

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

The New York Times

But after a month of spring training, the Yankees have ascertained that they do not have as much depth as they first thought.

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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

The New York Times

Israel was careful to emphasize that it had ascertained that there was no Turkish or Egyptian involvement in the incident.

News & Media

The New York Times

The synod said it had ascertained that Metropolitan Volodymyr was definitely too ill to carry out his duties.

News & Media

The Economist

By sneaking surreptitious looks at the better-dressed members of my yoga class, I had ascertained that a desirable brand was Prana.

Sony product engineers had ascertained that customers preferred pictures with a particular color density, let's call it a nominal density of 10.

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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.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

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.

Expression frequency: Common

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.

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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Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: