had been demonstrated

USAGE SUMMARY

The phrase "had been demonstrated" is correct and usable in written English.
It is typically used in the past perfect tense to indicate that something was shown or proven at some point before another past event. Example: "The effectiveness of the new treatment had been demonstrated in several clinical trials before it was approved for public use."

✓ Grammatically correct

Science

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

He told Four Corners no conflict of interest around lobbyists in the party had been demonstrated.

The Guardian

The inadequacies of Hibs had been demonstrated for the opening goal onwards.

The Guardian - Sport

The limits of economic Thatcherism had been demonstrated, especially in its monetarist manifestation.

The Guardian

"It took 10 years to get DDT banned after its effects had been demonstrated.

The Guardian

Hugh Davies QC, appearing for the officers, argued that no compelling basis had been demonstrated for a reinvestigation.

The Guardian

So we can't know if inside that mixed trace there was blood because it had been demonstrated or just saliva.

The Guardian

Hugh Davies QC, appearing for the officers, had argued that no compelling basis had been demonstrated for a reinvestigation.

The Guardian

This reparative effect had been demonstrated in muscle, liver and brain tissues [31 33].

Clinical and Translational Medicine

A musician benefit and a monolingual advantage, which had been demonstrated earlier were no longer present.

Cognitive Research: Principles and Implications

The selective preservation of aliphatic-C in humic acids had been demonstrated [3].

Chemical and Biological Technologies in Agriculture

CNT bumps had been demonstrated by several groups as potential off-chip interconnects [4 6].

Nanoscale Research Letters

Expert writing Tips

Best practice

Use "had been demonstrated" to clearly indicate that proof or evidence existed before a specific event in the past. This helps establish a timeline and context for the information you are presenting.

Common error

Avoid using "had been demonstrated" when simply stating a current fact or a future possibility. This phrase is specifically for actions completed before another point in the past, not for ongoing or future events.

Linguistic Context

The phrase "had been demonstrated" functions as a verb phrase in the past perfect passive voice. It indicates that an action of demonstrating or proving something was completed before a specific point in the past. According to Ludwig AI, it's grammatically correct.

Expression frequency: Very common

Frequent in

Science

61%

News & Media

25%

Wiki

5%

Less common in

Formal & Business

3%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "had been demonstrated" is a grammatically correct and frequently used phrase functioning as a verb in the past perfect passive voice. As confirmed by Ludwig AI, it is suitable for various contexts, but especially prevalent in science and news media. The phrase serves to indicate that something was proven before a specific point in the past. When writing, remember that there are alternatives such as "had been shown" or "had been proven", however, it’s crucial to keep the timeline clear and avoid using it for current or future events. Top authoritative sources like The Guardian and BBC employ this phrase, reinforcing its reliability in formal writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

had been shown

Uses a more general term for displaying or proving something.

had been proven

Emphasizes the conclusive establishment of truth or validity.

had been established

Focuses on the act of setting up or creating a firm basis for something.

had been verified

Highlights the confirmation of accuracy or truth.

had been validated

Stresses the act of confirming the correctness or suitability of something.

had been confirmed

Emphasizes the corroboration of something previously uncertain.

had been illustrated

Focuses on providing a clear example or visual representation.

had been exemplified

Highlights the use of something as a typical example.

had been evinced

Implies that something has been clearly displayed or revealed.

had been made evident

Highlights the clarification or revelation of something.

FAQs

How can I use "had been demonstrated" in a sentence?

Use "had been demonstrated" to show that something was proven or shown to be true before a certain point in the past. For example, "The safety of the drug "had been demonstrated" in clinical trials before its release."

What are some alternatives to "had been demonstrated"?

You can use alternatives like "had been shown", "had been proven", or "had been established" depending on the specific context.

Is it correct to say "has been demonstrated" instead of "had been demonstrated"?

The choice between "has been demonstrated" and "had been demonstrated" depends on the timeline. "Has been demonstrated" is present perfect, indicating something shown or proven before now. "Had been demonstrated" is past perfect, indicating something shown or proven before a specific point in the past.

What's the difference between "had been demonstrated" and "was demonstrated"?

"Had been demonstrated" indicates an action completed before another point in the past, emphasizing the sequence. "Was demonstrated" simply states that something was shown or proven at some point in the past, without necessarily linking it to another past event.