Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
ascertain about
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "ascertain about" is not correct in standard written English.
The correct usage would be "ascertain" without "about," as "ascertain" already implies finding out or determining something. Example: "I need to ascertain the details of the project before proceeding."
⚠ May contain grammatical issues
News & Media
Science
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
3 human-written examples
From what we can ascertain about his fiancée so far, it's easy to see the appeal.
News & Media
In order to ascertain about molecular structures of monomers, quantum chemical study was carried out.
What can we ascertain about the fictional Vincent CHYDE-directed "HYDE" and Calvin Harris' now confirmed role in it?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Sometimes they said that, sometimes they didn't, depending on what they had previously ascertained about the presence of other Polish people in a locality.
News & Media
All that can be ascertained about its position is in the letter, which those from all sides of the issue are scrutinizing with Talmudic zeal.
News & Media
It was unclear what information the German government had ascertained about those other four alleged nationals.
News & Media
Comparing the ARIC and HPFS cohorts versus the other three Appalachian ones, the mean age difference is over 20 years and the participants in older cohorts were ascertained about 10 years earlier.
Science
Wala said it has been "virtually impossible" to ascertain facts about the administration's targeted killing program.
News & Media
As quantum mechanics has taught us, things are inexorably changed by our trying to ascertain anything about them.
News & Media
Science – Create a timeline that compares forensic science techniques in the 1960s to ascertain information about crimes with modern day techniques.
News & Media
Sometimes the commercials are fun, or funny, or just befuddling, but we're interested not just because we want to be entertained but because we think we can ascertain something about our popular culture by examining our million-dollar-a-minute advertisements.
News & Media
Expert writing Tips
Best practice
Use "ascertain" without "about". The word "ascertain" already encompasses the meaning of finding something out, making "about" redundant and grammatically incorrect. For example, instead of "ascertain about the facts", say "ascertain the facts".
Common error
Avoid using "about" after "ascertain". The word "ascertain" inherently means to discover something, so adding "about" creates unnecessary redundancy. For example, it's incorrect to say "ascertain about the problem"; instead, say "ascertain the problem".
Source & Trust
83%
Authority and reliability
2.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "ascertain about" functions as a verb phrase where 'ascertain' acts as a transitive verb requiring a direct object. However, the addition of 'about' creates a grammatically incorrect construction. Ludwig AI indicates this usage as non-standard.
Frequent in
Science
33%
News & Media
33%
Encyclopedias
33%
Less common in
Formal & Business
0%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "ascertain about" is generally considered grammatically incorrect in standard English. The correct usage is simply "ascertain", as the word itself implies finding something out. Ludwig AI confirms this, pointing out that the addition of "about" is redundant. While some examples exist, they do not legitimize the construction. It's better to use alternatives like "determine", "establish", or "find out" based on the context to maintain grammatical accuracy and clarity in writing. The contexts where it is found are mostly Science, News & Media and Encyclopedias.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
determine
Focuses on reaching a definite conclusion or decision.
find out
A more informal way to say discover, suitable for casual contexts.
establish
Emphasizes confirming something firmly or setting it up on a secure basis.
discover
Highlights the act of finding something previously unknown.
learn
Focuses on gaining knowledge about something.
confirm
Similar to verify, but with a slightly stronger sense of validation.
uncover
Suggests revealing something that was hidden or not easily apparent.
verify
Highlights the act of confirming the truth or accuracy of something.
elucidate
Focuses on making something clear and easy to understand.
investigate
Emphasizes a detailed and systematic examination to uncover facts.
FAQs
Is it grammatically correct to say "ascertain about"?
No, it is not grammatically correct. The correct usage is "ascertain" without the preposition "about". "Ascertain" already means to find something out, so adding "about" is redundant.
What does "ascertain" mean?
"Ascertain" means to find something out for certain; make sure of. It implies a process of inquiry or investigation leading to a definitive conclusion.
What can I say instead of "ascertain about"?
How to properly use "ascertain" in a sentence?
Use "ascertain" directly followed by the object of your inquiry. For example: "The investigator tried to ascertain the truth."
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
2.1/5
Expert rating
Real-world application tested