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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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he has ascertained

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "he has ascertained" is correct and usable in written English.
It can be used when indicating that someone has determined or discovered something through investigation or inquiry. Example: "After thorough research, he has ascertained the cause of the issue."

✓ Grammatically correct

News & Media

Science

Wiki

Formal & Business

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

After he has ascertained that the ideas make sense, he bows out.

News & Media

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

More significantly, a sergeant from the special investigation branch of the Royal Military police signed a statement in which he said that during his inquiries he had "ascertained that Military Personnel had fired from Springmartin Road".

News & Media

The Guardian

Earlier in the day, Mr. Obama had berated reporters for obsessing on the theatrics of the meeting, saying he was "fascinated with the fascination" over the issue, which has been boiling since Sergeant Crowley, responding to a call about a possible break-in, arrested Professor Gates for disorderly conduct even though he had ascertained that he was in his own home.

News & Media

The New York Times

Before agreeing to make way, Williams said he had checked to make sure there was another National on the committee – given broadband is a significant political issue in the regions – but once he had ascertained Andrew Broad was a member he had stepped off willingly.

News & Media

The Guardian

This story originated in 1876, when the volunteer curator of Independence Hall, Colonel Frank Etting, announced that he had ascertained the truth of the story.

He had ascertained their position from ships he had stopped along his journey, but unfamiliar with the local channels and shoals he decided to wait until the following morning to make his attack.

I'm not sure what everyone expected Jobs to be working on, but the Wall Street Journal, ever vigilant, has ascertained that he is "pouring almost all of his attention into" the tablet.

News & Media

TechCrunch

But the hitters who will bat behind him are much less potent -- as Manager Bob Brenly has ascertained.

And as everyone from Mary J Blige to Olivia Newton-John has ascertained, this is the best love of all.

"The court has ascertained that Nevzlin organised a whole host of extremely serious crimes," declared Judge Valery Novikov.

News & Media

Forbes

To date, the SSC has ascertained 784 reportable stillbirths delivered from January 1 , 2010 through December 31 , 2011

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Expert writing Tips

Best practice

Pair the phrase with strong verbs describing the method of discovery, such as "through", "by", or "from".

Common error

Avoid using "he has ascertained" in casual conversations or informal writing. It can sound overly formal or pretentious in such settings. Opt for simpler alternatives like "he found out" or "he learned".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "he has ascertained" functions as a declarative statement indicating that a male individual has definitively discovered or established something. Ludwig AI confirms its correct usage. It is a verb phrase in the perfect tense, conveying a completed action with present relevance.

Expression frequency: Common

Frequent in

News & Media

35%

Science

30%

Wiki

15%

Less common in

Encyclopedias

10%

Formal & Business

10%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "he has ascertained" is a grammatically correct and widely used expression to indicate that a male individual has discovered or determined something through investigation or verification. As Ludwig AI confirms, it fits primarily within formal contexts, such as news, science, and encyclopedic writing, though also sometimes used more informally. For less formal situations consider using alternative phrases like "he has found out". Remember to use it appropriately to add sophistication and avoid sounding pretentious in casual conversations.

FAQs

What does "he has ascertained" mean?

The phrase "he has ascertained" means he has discovered or determined something, typically through investigation or careful examination. It implies a level of certainty and verification.

How can I use "he has ascertained" in a sentence?

You can use "he has ascertained" to indicate that someone has found something out through a deliberate process. For example, "After thorough research, "he has ascertained" the cause of the problem."

What are some alternatives to "he has ascertained"?

Alternatives to "he has ascertained" include "he has determined", "he has discovered", "he has found out", and "he has confirmed". The best choice depends on the specific context and the desired level of formality.

Is it appropriate to use "he has ascertained" in all types of writing?

While grammatically correct, "he has ascertained" is more suitable for formal or professional writing. In casual conversation or informal writing, simpler alternatives may be more appropriate.

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Source & Trust

84%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: