have demonstrated about

USAGE SUMMARY

The phrase "have demonstrated about" is not correct in standard written English.
It is typically used incorrectly as "demonstrated about" does not convey a clear meaning. Instead, "have demonstrated" should be followed by a specific subject or object. Example: "The researchers have demonstrated about the effects of climate change" should be revised to "The researchers have demonstrated the effects of climate change."

⚠ May contain grammatical issues

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

I mean, it's fun and everything, but is Pearson always right? "I have demonstrated about 85% accuracy when looking 10-15 yeaheadhead," he says.

The Guardian - Lifestyle

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

In the same U2 interview, guitarist the Edge said of protesters who had demonstrated about the issue during their 2011 Glastonbury set: "Was it totally fair?

The Guardian - Music

After a little less than one year of training, Elvis has demonstrated about 97percentt accuracy with over 200 samples from pregnant females.

Huffington Post

Marijuana Majority's Tom Angell told The Huffington Post that Obama's prediction affirms what legalization in Colorado and Washington has demonstrated "about generating tax revenue, reducing crime and freeing up limited police resources".

Huffington Post

Several leading laboratories have demonstrated that about 10,000 protein products, of the about 20,000 protein-coding human genes, can be identified and quantified in a single experimental specimen; this figure may represent nearly the complete complement of proteins actually expressed in a single cell type.

Clinical Proteomics

They have demonstrated at about 30 Gore rallies, opposing the oil company's plans to drill on land in Colombia that Indians contend is theirs.

The New York Times

While previous studies have demonstrated that about 95% of the male CF patients are infertile because of bilateral absence of the vas deferens (CBAVD) [6], whether CFTR mutations may result in other forms of infertility, such as azoospermia, remains an open question.

Plosone

Recent studies have demonstrated that about 70% of breast cancers produce PSA.

British Journal of Cancer

Recent reports, however, have demonstrated that about 50% of patients admitted with ADHF have a preserved LVEF [ 6].

Critical Care

We have demonstrated concerns about the awareness of the risks of medicinal products among the population of Vientiane Capital.

BMC Public Health

Recent studies have demonstrated details about the STAT3 nuclear localization mechanism [ 61] and have blocked this localization in human multiple myeloma cells [ 23].

BMC Cancer

Expert writing Tips

Best practice

Avoid using the phrase "have demonstrated about". Instead, use "have demonstrated" followed by the object of demonstration, or use alternative phrases like "have shown regarding" or "have illustrated concerning" for greater clarity and grammatical correctness.

Common error

A common mistake is adding "about" after "demonstrated" as if introducing the topic. Instead, "demonstrated" should be followed directly by what was demonstrated (e.g., "have demonstrated a skill") or replaced with a more suitable verb-preposition combination.

Linguistic Context

The phrase "have demonstrated about" is generally considered grammatically incorrect. When one demonstrates, it is expected to demonstrate something specific, not "about" something. Ludwig AI indicates this is not standard English.

Expression frequency: Rare

Frequent in

Science

30%

News & Media

30%

Formal & Business

10%

Less common in

Encyclopedias

5%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "have demonstrated about" is grammatically incorrect and should be avoided. As Ludwig AI confirms, standard English usage requires a direct object after "demonstrated". The intended meaning – showing or proving something regarding a topic – can be better conveyed through alternative phrases such as "have demonstrated", "have shown regarding", or "have illustrated concerning". While the phrase might occasionally appear in various contexts, especially news and media, its incorrect grammar diminishes its effectiveness and clarity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

have demonstrated

This alternative omits the "about", resulting in a grammatically correct phrase that directly indicates having shown or proven something.

have shown regarding

This alternative replaces "demonstrated about" with "shown regarding", offering a similar meaning with a focus on what has been revealed or indicated.

have proven regarding

Using "proven regarding" offers a stronger sense of having established something as true concerning a specific topic.

have illustrated concerning

This option uses "illustrated concerning" instead of "demonstrated about", implying a visual or descriptive representation of a topic.

have displayed concerning

This alternative suggests that something has been shown or exhibited with regards to a particular subject.

have established regarding

This phrase conveys that something has been definitively proven or set concerning a particular issue.

have evinced regarding

This alternative replaces "demonstrated" with "evinced", indicating a showing or revealing of something, often a quality or feeling.

have presented regarding

Using "presented regarding" implies that information or evidence has been formally shown concerning something.

have highlighted concerning

This alternative focuses on drawing attention to specific aspects of a subject.

have indicated about

This alternative uses "indicated about", which, while sounding more natural, is still not the most grammatically correct way to express the idea.

FAQs

How should I correctly use "demonstrated" in a sentence?

Follow "demonstrated" directly with the object or result that was shown or proven. For example, "The study "demonstrated the effectiveness" of the new treatment" is correct.

What's wrong with saying "have demonstrated about"?

The phrase "have demonstrated about" is grammatically incorrect. The verb "demonstrate" typically takes a direct object, meaning it should be followed by what was demonstrated, not a preposition like "about."

What can I say instead of "have demonstrated about"?

Depending on the context, you can use phrases like "have demonstrated", "have shown regarding", or "have illustrated concerning".

Is "demonstrated on" a better alternative to "have demonstrated about"?

While "demonstrated on" is grammatically correct, it has a different meaning, usually referring to where or upon what something was demonstrated (e.g., "demonstrated on a prototype"). It's not a direct replacement for the intended meaning of showing or proving something about a topic.