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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
has ascertained
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has ascertained" is correct and usable in written English.
You can use it when indicating that someone has determined or discovered something with certainty. Example: "The investigator has ascertained the cause of the accident after thorough analysis."
✓ Grammatically correct
Science
News & Media
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
17 human-written examples
But the hitters who will bat behind him are much less potent -- as Manager Bob Brenly has ascertained.
News & Media
And as everyone from Mary J Blige to Olivia Newton-John has ascertained, this is the best love of all.
News & Media
Once she has ascertained that our waitress and her family are enjoying good health, Brooke orders a sandwich and I order a salad, and I put an inevitable question: What was Vincent Astor really like?
News & Media
Once it has ascertained that the reducer meets all the hardware and availability requirements, the server replies with a reduce task that fits the request.
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
Thus, for example, one ascertains P on the basis of good reasons Q, R, etc., whose characteristics one has ascertained earlier.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
43 human-written examples
Once we have ascertained all the facts, we will act accordingly".
News & Media
But with 10 worms, we've ascertained a dose that does not cause symptoms.
News & Media
New Zealand, researchers have ascertained, spent NZ$172 million on legal aid in the year 2009/10.
News & Media
From what we've ascertained from her fourth and latest album, The One, Ntjam Rosie is a woman in love.
News & Media
On the train home I sat opposite a woman who, having ascertained what I was doing in Cornwall, told me that she too had eaten at Nathan Outlaw.
News & Media
Expert writing Tips
Best practice
Use "has ascertained" to convey a sense of thoroughness and certainty in the process of finding something out. It's suitable for formal writing where precision is important.
Common error
Avoid using "has ascertained" in casual conversations or informal writing. Simpler alternatives like "found out" or "learned" may be more appropriate.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "has ascertained" is as a verb phrase in the present perfect tense. It indicates an action (ascertaining) that was completed at some point in the past and has relevance to the present. Ludwig provides numerous examples demonstrating its use in various contexts.
Frequent in
Science
41%
News & Media
41%
Encyclopedias
6%
Less common in
Wiki
6%
Formal & Business
6%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "has ascertained" is a grammatically correct and frequently employed verb phrase that indicates the certain discovery or determination of something. Ludwig AI underscores its validity, confirming that it's appropriate for diverse writing styles. Its usage is especially prevalent in scientific and news contexts, lending a sense of formality and precision. While "has ascertained" is widely recognized, writers should consider the context to ensure the phrase aligns with the intended level of formality, opting for simpler alternatives such as ""has determined"" or ""has confirmed"" when a less formal tone is desired.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has determined
Focuses more on the process of coming to a conclusion after consideration.
has established
Implies a more formal and definitive confirmation.
has confirmed
Suggests verifying something already suspected or proposed.
has verified
Emphasizes the act of checking the truth or accuracy of something.
has discovered
Highlights the finding of something previously unknown.
has learned
Focuses on gaining knowledge or understanding.
has found out
Is a more informal way of saying 'has discovered'.
has figured out
Suggests solving a problem or understanding a complex situation.
has become aware
Highlights the gaining of awareness or realization.
has concluded
Implies reaching a decision based on evidence or reasoning.
FAQs
How to use "has ascertained" in a sentence?
Use "has ascertained" to indicate that someone has determined or discovered something with certainty after a thorough investigation. For example, "The detective "has ascertained" the suspect's motive."
What can I say instead of "has ascertained"?
You can use alternatives like "has determined", "has established", or "has confirmed" depending on the context.
Which is correct, "has ascertained" or "ascertained"?
"Has ascertained" is a present perfect construction, indicating a completed action with current relevance. "Ascertained" is past simple. The choice depends on the intended meaning and tense of your sentence.
What's the difference between "has ascertained" and "has assumed"?
"Has ascertained" implies a thorough investigation leading to a certain conclusion, while "has assumed" suggests a belief taken for granted without proof.
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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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested