ascertain whether or not

USAGE SUMMARY

The phrase "ascertain whether or not" is correct and usable in written English.
It can be used when you want to determine the truth or validity of a statement or situation. Example: "We need to ascertain whether or not the project will be completed on time."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I directed the department to try to ascertain whether or not those complaints were legitimate.

The Washington Post

These campaigns attracted interest from researchers keen to ascertain whether or not such interventions increase awareness and change behaviours.

Nature

In departure time studies it is crucial to ascertain whether or not individuals are flexible in their choices.

Transportation Research Part A: Policy and Practice

A study to ascertain whether or not the assumed values are valid has begun using reflectance spectroscopy as a means of determining the material type of the object.

Advances in Space Research

Calls by the Guardian to Akorn to ascertain whether or not its midazolam had been acquired by Oklahoma were not returned.

The Guardian

"It is one thing to seek to ascertain whether or not an athlete has an unfair advantage over others," Mr. Zuma said.

The New York Times

As a result, the police and prosecutors would be unable to clearly ascertain whether or not a defendant had accepted counsel.

Cornell University

This study aimed to evaluate the influence of dental pulp stem cells on bone regeneration and to ascertain whether or not there was any superiority over traditional methods.

Archives of Oral Biology

That instructed the dozen-strong team of chemical weapons experts and medical specialists to ascertain whether or not chemical weapons – probably nerve gas – had been deployed in Ghouta on 21 August.

The Guardian

Is it my right under the constitution to intervene, call an impromptu vote to ascertain whether or not a super-majority concurs, that dispatching emergency medical technicians is Pareto optimal?

University of California, Berkeley

After reading the chapter, you will have the necessary information to properly evaluate your existing access control measures and ascertain whether or not you need to increase your security measures or maintain your current status.

Security Risk Assessment Managing Physical and Operational Security

Expert writing Tips

Best practice

Use "ascertain whether or not" when you need to formally and carefully establish the truth or validity of a statement or situation. It's particularly useful in academic, scientific, or legal contexts.

Common error

While grammatically correct, "ascertain whether or not" can sound overly formal in casual conversations. Opt for simpler alternatives like "find out if" or "see if" in informal settings.

Linguistic Context

The phrase "ascertain whether or not" functions as an interrogative clause initiator, introducing a question or condition that requires confirmation or verification. As shown in the Ludwig examples, it is often used in formal contexts to introduce a question that needs to be answered through investigation.

Expression frequency: Very common

Frequent in

Science

65%

News & Media

25%

Academia

10%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "ascertain whether or not" is a grammatically correct and frequently used phrase, as supported by Ludwig. It serves to introduce a question or condition requiring verification, often in formal contexts such as science, news, and academia. While simpler alternatives exist for informal settings, the phrase maintains clarity and precision in professional communication. Ludwig AI affirms its usability, highlighting its role in seeking confirmation or validation. With a high expert rating, "ascertain whether or not" remains a valuable tool in formal English writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Determine if

Shorter and more direct.

Ascertain if

Omits the "or not" for brevity, maintaining formality.

Find out whether

More informal and conversational.

Establish if

Implies a more formal and definitive confirmation.

Verify whether

Focuses on confirming the truth of something.

Confirm whether or not

Emphasizes validation or corroboration.

Investigate if

Suggests a more in-depth inquiry.

Check to see if

More casual and less formal.

Learn whether

Indicates gaining knowledge about something.

Figure out if

Implies solving a puzzle or problem to find an answer.

FAQs

How can I use "ascertain whether or not" in a sentence?

You can use "ascertain whether or not" to introduce a question that needs to be answered through investigation or research. For instance, "Scientists are working to ascertain whether or not the new drug is effective."

What's a simpler way to say "ascertain whether or not"?

For less formal situations, consider using phrases like "determine if", "find out whether", or "check if".

Is "ascertain whether or not" redundant since "ascertain" already implies certainty?

While "ascertain" does imply discovering something definitively, "ascertain whether or not" is used to explicitly present two possible outcomes. Although some consider it verbose, it adds clarity in many contexts.

What is the difference between "ascertain whether or not" and "determine whether or not"?

"Ascertain whether or not" often implies a more careful and thorough investigation than "determine whether or not". "Ascertain" suggests effort to remove doubt, while "determine" can be a more general discovery.