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
supposed to ascertain
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "supposed to ascertain" is correct and usable in written English.
It can be used when indicating an expectation or obligation to find out or determine something. Example: "The committee is supposed to ascertain the facts before making a decision."
✓ Grammatically correct
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
1 human-written examples
As our interview comes to an end, it's time to release the star back into Hollywood, to a gay bar, to a library, to wherever the heck Franco wants to go, and I'm left pondering what exactly we are supposed to ascertain from stance on sexial behaviour.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
This is not about paperwork or data collection; ascertaining a child's Aboriginal status is supposed to trigger a range of interventions and protections.
News & Media
A former principal and fellow of the Centre for Policy Development, Chris Bonnor, said with Gonski funding only rolled out from 2014, it was still too early to ascertain the impact the funding was having on the schools the money was supposed to target; under-performing and under-resourced ones.
News & Media
As a law enforcement official who is supposed to avoid even the appearance of impropriety, Mrs. Pirro surely had a responsibility at least as great as that of other taxpayers to ascertain that her personal and campaign expenses were being properly handled.
News & Media
He was supposed to.
News & Media
"They're supposed to".
News & Media
They are supposed to.
News & Media
"You're supposed to.
News & Media
He is supposed to.
News & Media
"You're supposed to knock.
News & Media
She's supposed to go.
News & Media
Expert writing Tips
Best practice
Use "supposed to ascertain" when you want to convey an expectation or duty to discover or establish something with certainty. For instance, "The auditors are supposed to ascertain the financial health of the company."
Common error
Avoid using "supposed to ascertain" in contexts where simpler verbs like "find out" or "determine" are more appropriate. Overusing "ascertain" can make your writing sound unnecessarily formal or pretentious. Choose the simplest word that conveys your intended meaning.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "supposed to ascertain" primarily functions as an infinitive phrase expressing expectation or obligation. Ludwig AI shows examples where it's used to indicate a duty to find out specific information or facts.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "supposed to ascertain" is a grammatically correct expression used to convey an expectation or duty to discover or establish something with certainty. While relatively rare, as indicated by Ludwig AI's examples, it appears in neutral to formal contexts, particularly in news and scientific domains. The phrase indicates an obligation to find out something, it's a functional and clear expression, alternatives like "expected to determine" or "tasked with determining" can provide similar meaning with subtle differences in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
expected to determine
Replaces "supposed to" with "expected to", emphasizing anticipation rather than obligation.
meant to discover
Substitutes "ascertain" with "discover", focusing on uncovering information.
intended to find out
Uses "find out" instead of "ascertain", making the phrase more informal.
tasked with determining
Emphasizes the assignment of a duty to determine something.
required to establish
Highlights the formal requirement to establish facts.
obligated to verify
Focuses on the obligation to verify information.
responsible for confirming
Highlights the responsibility of confirming a specific fact.
duty to investigate
Uses the term "duty", highlighting a moral or legal imperative to find out something.
should be finding out
Expresses a recommendation about finding out.
must identify
Highlights a compulsory need to identify specific features or information.
FAQs
How can I use "supposed to ascertain" in a sentence?
Use "supposed to ascertain" to indicate an expectation or obligation to find out or determine something. For example, "The investigators are "supposed to ascertain" the cause of the accident."
What are some alternatives to "supposed to ascertain"?
Alternatives include "expected to determine", "meant to discover", or "tasked with determining". The best choice depends on the specific nuance you want to convey.
Is it better to say "supposed to ascertain" or "should ascertain"?
"Supposed to ascertain" implies an obligation or expectation, while "should ascertain" suggests a recommendation or advisability. Choose the phrase that best reflects the nature of the requirement or suggestion.
What is the difference between "ascertain" and "determine"?
"Ascertain" implies establishing something with certainty after investigation, while "determine" simply means to decide or conclude. "Ascertain" suggests a more thorough and conclusive process.
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
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested