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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

as been demonstrated

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "as been demonstrated" is not correct in English.
Did you mean "has been demonstrated"? You can use the correct phrase when referring to evidence or examples that support a claim or argument. Example: "The effectiveness of the new policy has been demonstrated through various studies and reports."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

6 human-written examples

For many other vertebrate groups, it as been demonstrated that CYP19 plays a key role in sex differentiation [ 3].

Indeed, coherent coupling in such a system as been demonstrated [10].

Data quality is important for QSAR/QSPR models and their predictive ability, as been demonstrated in previous work using the logP dataset which showed improved performance after curation [54].

This is not without precedent, as it as been demonstrated that this cell line is relatively insensitive to chemotherapy (Xu et al. 2006 a, Qian et al. 2010).

Importantly, we cannot exclude the possibility that some of the effects that we observe may be due to removal of H19 non-coding RNA, as been demonstrated in the small intestine (Yoshimizu et al, 2008).

If, as been demonstrated with antibiotic resistance spread between bacterial cells communicating via TnTs, cancer cells propagate chemoresistance by sending counteractive resistant signals or genetic codes of resistance via TnTs, targeting these nanotubes will help us understand if chemoresistance is an avoidable phenomenon, rather than inevitable.

Human-verified similar examples from authoritative sources

Similar Expressions

54 human-written examples

Holding territory will be difficult, however, since the al-Qaida-linked militants are skilled in guerrilla war, as was demonstrated after Ethiopia invaded Somalia in late 2006.

News & Media

The Guardian

And that in itself has a long history in his career, as is demonstrated in a series of early works on paper in an adjoining gallery.

News & Media

The New York Times

We do not, and as was demonstrated in this study, most people would have a hard time sticking to prolonged fasting regimens like that.

Remarkably, PSA constitutes a positive feedback loop stimulating AR expression as was demonstrated in vitro [ 175].

FOX2-dependent AS was demonstrated for SLK in a study of human embryonic stem cells [ 62].

Show more...

Expert writing Tips

Best practice

Always use the correct auxiliary verb form, "has", instead of "as" when intending to say something has been demonstrated. Using "has" ensures grammatical accuracy and clarity in your writing.

Common error

Avoid substituting "as" for "has" when constructing perfect tense phrases. "As" functions as a conjunction or preposition, not an auxiliary verb; using it in place of "has" creates a grammatical error.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "as been demonstrated" is intended to function as part of a passive construction, indicating that something has been shown or proven. However, this specific phrase is grammatically incorrect. As Ludwig AI shows, the correct form is "has been demonstrated".

Expression frequency: Common

Frequent in

Science

36%

News & Media

55%

Academia

9%

Less common in

Encyclopedias

0%

Formal & Business

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "as been demonstrated" is grammatically incorrect and should be avoided. The correct phrase is "has been demonstrated". While the phrase appears in various contexts, including science, news and media, its incorrect grammar reduces its credibility. Always use "has" instead of "as" as the auxiliary verb in this construction, and consider alternatives like "has been shown" or "demonstrated" for conciseness. The Ludwig AI tool highlights the grammatical error and provides examples of correct usage.

FAQs

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

The correct way to phrase this is "has been demonstrated". The auxiliary verb "has" is required for the present perfect passive construction.

Can I use "as" instead of "has" in similar phrases?

No, "as" and "has" have distinct grammatical functions. "As" introduces clauses or acts as a preposition, while "has" is an auxiliary verb used to form perfect tenses. Using "as" in place of "has" is grammatically incorrect.

What are some alternatives to "has been demonstrated"?

Depending on the context, you can use phrases like "has been shown", "has been proven", or simply "demonstrated".

Is "as was demonstrated" grammatically correct?

Yes, "as was demonstrated" is grammatically correct. It uses "as" to introduce a clause indicating something that has been shown or proven in the past, and it's frequently used in formal writing.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

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.

Source & Trust

87%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Most frequent sentences: