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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
I ascertain that
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I ascertain that" is correct and usable in written English.
You can use it in a sentence to emphasize when you've concluded or determined a certain fact. For example: "After doing some research, I ascertain that the project will be completed by the end of the month."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
I have determined that
I have concluded that
I have confirmed that
I have established that
I have verified that
I have found that
I can confirm that
I can verify that
It is my understanding that
I infer that
I confirm that
I assess that
I establish that
I identify that
I discuss that
I discover that
I investigate that
I examined that
I ensures that
I establishing that
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
2 human-written examples
My first morning of a new season, having bought the newspaper from the same kiosk lady who sees a narrow slice of Spoleto from her little blind, I ascertain that the barrista dispensing the cappuccino I have dreamed of all year is still turning out a brew our own indifferent coffee jerks can't manage.
News & Media
In the event of us entering into a business relationship, I ascertain that in addition to an agreed monthly fee, you will also benefit from heavy traffic to your site which would in turn increase your earnings.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Probably wine) The packaging from a Tesco Finest Sherry Trifle A box marked Davidoff Adventure From this I managed to ascertain that: a) She doesn't recycle her glass bottles b) She seems to only eat desserts c) She uses cheap shampoo With the other celebrity trash we'd stolen, we tried to make it into something to do with that person.
News & Media
From the rest of Twitter, which got very active at 10.31pm, I ascertained that the something is not nice.
News & Media
By the time of Quinn's inquest, he had signed a new statement in which the word "no" had appeared, so that it read: "I ascertained that no Military Personnel had fired from Springmartin Road …" A few minutes after the deaths of Mullan and Quinn, another group of people, gathered opposite the Henry Taggart memorial hall, 250 yards to the south, also came under fire.
News & Media
I thought -- but only the next morning, after a clipped call to 311, the city's information hot line, from which I ascertained that sand theft is illegal -- that this digging could characterize immigration: you take what you can from your home country, toss it into bags and get ready to flee, hoping the grains will last you.
News & Media
If the source is Russia, we should be able to ascertain that pretty quickly.
News & Media
The White House takes care to ascertain that petition signatories are bona fide US citizens.
News & Media
It was in News International's power to ascertain that, wasn't it?
News & Media
Dead insects were dissected under the stereomicroscope to ascertain that mortality resulted from nematodes' infection.
From a section in the notebook marked "Alternatives to death," Lymberis added that we can ascertain that "he was desperate.
News & Media
Expert writing Tips
Best practice
When using this phrase, ensure the statement that follows is factual and supportable.
Common error
Avoid using "I ascertain that" in casual conversations or informal writing. Simpler phrases like "I think" or "I believe" are often more appropriate and natural.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I ascertain that" functions as a declarative statement introducing a conclusion or finding. It serves to emphasize the speaker's certainty and authority. As Ludwig AI states, the phrase is correct and emphasizes a conclusion.
Frequent in
News & Media
33%
Science
33%
Formal & Business
33%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "I ascertain that" is a formal phrase used to introduce a conclusion or finding, indicating certainty and authority. While grammatically correct and usable, as Ludwig AI confirms, its frequency is rare, making it more suitable for formal and scientific contexts. It is vital to avoid overuse in informal settings, opting for simpler alternatives like "I think" or "I believe". Related phrases such as "I have determined that" or "I have concluded that" can offer similar meanings with varying degrees of emphasis. Top authoritative sources for this phrase include The New York Times and The Guardian.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I have determined that
More direct and commonly used phrasing to indicate a conclusion.
I have concluded that
Emphasizes the process of reaching a decision or judgment.
I have established that
Highlights the confirmation of a fact or truth through evidence.
I have confirmed that
Suggests verification of existing information or belief.
I have verified that
Indicates a thorough check to ensure accuracy.
I have found that
Implies discovery through investigation or observation.
I can confirm that
Shifts focus slightly to ability to confirm.
I can verify that
Shifts focus slightly to ability to verify.
It is my understanding that
Expresses a belief based on information received, slightly less assertive.
I infer that
Indicates a conclusion reached through reasoning and deduction.
FAQs
What does "I ascertain that" mean?
The phrase "I ascertain that" means "I have determined or established with certainty". It indicates that the speaker has reached a firm conclusion based on evidence or reasoning.
When is it appropriate to use "I ascertain that"?
It is most appropriate to use "I ascertain that" in formal writing or speech when you want to emphasize that you have reached a well-considered and substantiated conclusion. It can be used in reports, academic papers, or professional communications.
What are some alternatives to "I ascertain that"?
You can use alternatives such as "I have determined that", "I have concluded that", or "I have confirmed that" depending on the specific nuance you want to convey.
Is "I ascertain that" more formal than "I think that"?
Yes, "I ascertain that" is significantly more formal than "I think that". "I think that" expresses a personal opinion or belief, while "I ascertain that" implies a more rigorous and evidence-based conclusion.
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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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested