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 them
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "ascertain them" is correct and usable in written English.
It can be used when you want to express the action of finding out or determining specific information or details about something or someone. Example: "Before making a decision, it is important to ascertain them to ensure you have all the necessary facts."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
Nevertheless, in vitro functional studies are needed to ascertain them and, if possible, they should be made before considering a variation as a pathological mutation or as a functional polymorphism.
Science
Information sources used to develop health state descriptions varied, but there was no reference to stroke patients' perspectives; no studies included primary research with patients to ascertain them.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Numerous researchers, including ourselves, have studied polymorphic Alu insertion loci by first ascertaining them in a small set of individuals and then genotyping them in a larger set using locus-specific PCR primers and gel electrophoresis [ 4, 43- 45].
Science
Participants' presenting visual acuity (PVA) was ascertained with them wearing their habitual optical corrections (spectacles).
Science
Some parents may not be familiar with such medical terms and this would need to be ascertained from them at an early stage in the consultation.
Mathesius put it like this: " … linguistic characterology deals only with the important and fundamental features of a given language at a given point in time, analyses them on the basis of general linguistics and tries to ascertain relations between them" [1964: 59].
Science
As quantum mechanics has taught us, things are inexorably changed by our trying to ascertain anything about them.
News & Media
The results of single-diode and two-diode models are evaluated in order to ascertain which of them are more accurate.
Police seized the drugs and are trying to ascertain who dropped them off in the first place.
News & Media
However, clear breaches of systems designed to promote safety need to be examined to ascertain whether underlying them were social, organisational or work flow factors influencing 'work-around' behaviour.
When students first open Yup, a bot briefly interviews them to ascertain what subject matter and level of tutoring help they need to match them with an ideal tutor.
News & Media
Expert writing Tips
Best practice
Ensure that the subject pronoun "them" clearly refers to a previously mentioned noun or idea to avoid ambiguity.
Common error
While "ascertain" is generally suitable for formal and professional contexts, using "ascertain them" in very informal settings may sound overly stilted. Opt for simpler alternatives like "find out about them" or "learn about them" in such situations.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "ascertain them" functions as a transitive verb phrase where "ascertain" is the verb and "them" is the direct object pronoun. According to Ludwig AI, the phrase is correct and usable in written English.
Frequent in
Science
60%
News & Media
30%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "ascertain them" is a grammatically correct verb phrase used to denote the act of finding out or establishing information about a specific group of items or ideas, as mentioned by Ludwig AI. It tends to be employed in formal and scientific contexts, although it also appears in news and media. When writing, ensure the pronoun "them" has a clear antecedent and be mindful of the formality level, opting for simpler alternatives in casual settings. Remember to also verify the accuracy of the facts that you "ascertain".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
determine them
Replaces "ascertain" with a synonym, keeping the overall meaning the same but offering a slightly different tone.
establish them
Similar to "ascertain", but implies a more definitive and conclusive finding.
find them out
Uses a phrasal verb to convey the meaning of discovering something that was previously unknown.
discover them
Emphasizes the act of uncovering or becoming aware of something.
verify them
Focuses on confirming the truth or accuracy of something.
confirm them
Similar to "verify", but suggests a stronger degree of certainty.
learn about them
Broader in scope, suggesting gaining knowledge about something without necessarily reaching a definitive conclusion.
investigate them
Implies a more thorough and systematic examination to uncover information.
look into them
Similar to "investigate", but often suggests a less formal or in-depth inquiry.
get to the bottom of them
Idiomatic expression indicating a desire to fully understand something, often a problem or mystery.
FAQs
How can I use "ascertain them" in a sentence?
You can use "ascertain them" when referring to a group of things or ideas and expressing the action of finding something out about those things or ideas. For example: "Before making a decision, it is important to ascertain them to ensure you have all the necessary facts."
What are some alternatives to "ascertain them"?
Some alternatives to "ascertain them" include "determine them", "establish them", or "find them out", depending on the specific nuance you want to convey.
Is "ascertain them" formal or informal?
"Ascertain them" tends to be more formal due to the verb "ascertain". In informal contexts, phrases like "find out about them" might be more appropriate.
What's the difference between "ascertain them" and "verify them"?
"Ascertain them" implies discovering or establishing something, while "verify them" means confirming the truth or accuracy of something. The choice depends on whether you're initially finding something out or confirming something already suspected.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested