have been ascertained

USAGE SUMMARY

The phrase "have been ascertained" is correct and usable in written English.
It can be used when indicating that certain facts or information have been determined or established. Example: "The results of the study have been ascertained and will be published next month."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Inclusion in NDR may be qualified in several ways, and registrants may have been ascertained subsequently by other sources than by the primary ascertainment source with the earliest qualification fulfilled.

Clinical Epidemiology

In general, two big problems with Ecstasy have been ascertained.

The New York Times - Magazine

Their assignment and molecular structure have been ascertained by DFT calculations.

Catalysis Today

It is difficult to guess how well the relationships among these characters would have been ascertained without Mr. Barenboim's prologue.

The New York Times - Arts

The administration should have held off until the true impact of its rules could have been ascertained.

The New York Times

Although the pathogenicity and genome of AbSV have been ascertained, the epidemiology of AbSV infection remains to be investigated.

Journal of Virological Methods

For demonstration of its application the intermodal coupling coefficients of a scaled fuselage model have been ascertained.

Journal of Sound and Vibration

The optimal experimental conditions and their effects have been ascertained by response surface methodology using the Box Behnken model.

Carbohydrate Polymers

Mechanisms of the catalytic and photocatalytic reactions involving complex compounds based on the metal oxides have been ascertained.

Superlattices and Microstructures

All in all, the reliability and efficiency of proposed DFA have been ascertained from loading pattern optimization results.

Annals of Nuclear Energy

After those counties that come within the 'populous' category, so defined, have been ascertained, they are then allocated one senatorial seat for each full ratio.

Cornell University

Expert writing Tips

Best practice

Use "have been ascertained" when you want to convey that facts or information have been definitively established through a process of investigation or discovery.

Common error

Avoid using "have been ascertained" in very informal writing. Simpler alternatives like "found out" or "learned" may be more appropriate.

Linguistic Context

The phrase "have been ascertained" functions as a passive perfect construction, indicating that a process of discovering or establishing something has been completed. Ludwig AI shows its use in various contexts, from scientific studies to news reports.

Expression frequency: Very common

Frequent in

Science

78%

News & Media

12%

Academia

10%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "have been ascertained" is a grammatically correct and commonly used passive perfect construction. Ludwig AI analysis confirms that it's most frequently employed in formal and scientific writing to indicate that facts or information have been definitively established. While its usage is widespread, it's advisable to consider simpler alternatives in more informal contexts. It can often be replaced by alternatives like have been determined or have been established.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

have been determined

Focuses on the process of finding something out through investigation.

have been established

Emphasizes the act of setting something up definitively.

have been discovered

Highlights the finding of something previously unknown.

have been found

Implies that something was located after a search.

have been identified

Highlights the process of recognizing something specific.

have been verified

Stresses the confirmation of something's truth or accuracy.

have been confirmed

Similar to 'verified', but suggests a stronger level of proof.

have been proven

Indicates that something has been shown to be true without a doubt.

have been learned

Focuses on the acquisition of knowledge.

have been clarified

Emphasizes making something clear or understandable.

FAQs

How can I use "have been ascertained" in a sentence?

Use "have been ascertained" to indicate that certain facts or pieces of information have been established or determined through investigation. For example: "The cause of the error "has been ascertained"."

What are some alternatives to "have been ascertained"?

You can use alternatives like "have been determined", "have been established", or "have been discovered" depending on the context.

Is it better to use "have been ascertained" or "were ascertained"?

"Have been ascertained" is present perfect tense, indicating an action completed at an unspecified time in the past. "Were ascertained" is past tense, indicating an action completed at a specific time in the past. Choose the tense that best fits your intended meaning.

What is the difference between "have been ascertained" and "have been assumed"?

"Have been ascertained" means something has been definitively determined or discovered. "Have been assumed" means something is taken for granted or supposed without proof. They have opposite meanings.