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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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it been demonstrated

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "it been demonstrated" is not correct in written English.
The correct form would be "it has been demonstrated." Example: "It has been demonstrated that regular exercise improves mental health."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

6 human-written examples

Just one researcher had observed this catapulting motion in the wild, and only now has it been demonstrated in the lab.

Science & Research

Science Magazine

To the best of our knowledge, neither in Xia et al. nor in any other paper on the LCMNB approach has it been demonstrated that (i) the contribution of Eq. 22 is zero, i.e., ∑ j ( 1 − x j ) ln ν ij − ( L − 1 ) × ln p ( ω i ) = 0, ∀ i, i = 1, 2,.., C (23).

Nor has it been demonstrated that this program even provides any uniquely valuable intelligence".

News & Media

Huffington Post

It has not been established that the various therapy rating scales measure what they purport to measure, nor has it been demonstrated that their threshold scores are appropriate ones for viewing sessions as having been delivered well enough.

Only recently has it been demonstrated that lipopolysaccharide (LPS) induces the expression of HIF1α in macrophages and that the induction of hypoxic genes in macrophages is also Toll-like receptor 4 (TLR4 -dependent.

Nor has it been demonstrated by any rigorous computation that combinatorial control of gene expression by protein complexes is insufficient to support the regulatory complexity required to make a human (to which alternative splicing of coding RNAs is likely to make a significant contribution - see for example[ 11]).

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

"It's demonstrated in the branch every day.

News & Media

The New York Times

Most often, it was demonstrated in extracurricular activities.

News & Media

The New York Times

It was demonstrated recently when 1,701 people applied for just eight vacancies with Costa Coffee.

News & Media

The Guardian

Until it is demonstrated widely at a reasonable cost, then other technologies will attract the attention.

News & Media

The New Yorker

It's demonstrated especially strongly in some of our closest relatives.

News & Media

The Guardian
Show more...

Expert writing Tips

Best practice

Always use the correct grammatical form, such as "it has been demonstrated", "it was demonstrated", or "it is demonstrated", depending on the intended tense.

Common error

Avoid omitting auxiliary verbs like "has", "is", or "was" before "been" or other past participle forms. Doing so results in grammatically incorrect sentences.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

3.2/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "it been demonstrated" attempts to convey that something has been proven or shown to be true. However, it is grammatically incomplete. The correct form requires an auxiliary verb such as "has", "was", or "is". Ludwig AI confirms the grammatical error.

Expression frequency: Common

Frequent in

Science

65%

News & Media

30%

Formal & Business

5%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

While the phrase "it been demonstrated" appears relatively frequently, it is grammatically incorrect. Ludwig AI flags this error, indicating the need for an auxiliary verb to form a complete and correct sentence. Options include "it has been demonstrated", "it was demonstrated", or "it is demonstrated", depending on the desired tense. Although found across various sources, especially in science and news, ensuring grammatical accuracy enhances the credibility of your writing. Remember to select the correct tense and auxiliary verb to effectively communicate your intended message. Common errors include omitting these crucial auxiliary verbs. Always proofread to maintain clarity and professionalism.

FAQs

What is the correct way to say "it been demonstrated"?

The correct phrasing depends on the intended tense. Use "it has been demonstrated" for present perfect, "it was demonstrated" for simple past, or "it is demonstrated" for simple present.

What are some alternatives to "it been demonstrated"?

You can use alternatives like "it has been shown", "evidence suggests", or "research indicates" depending on the context.

Which is correct, "it been demonstrated" or "it has been demonstrated"?

"It has been demonstrated" is grammatically correct. "It been demonstrated" is missing the auxiliary verb "has".

How can I ensure I'm using the correct tense when saying something has been demonstrated?

Consider when the demonstration took place. If it's in the past and completed, use "it was demonstrated". If it started in the past and continues to the present, use "it has been demonstrated". If it's a general truth, use "it is demonstrated".

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Source & Trust

86%

Authority and reliability

3.2/5

Expert rating

Real-world application tested

Most frequent sentences: