had demonstrated before

USAGE SUMMARY

The phrase "had demonstrated before" is correct and usable in written English.
It can be used to refer to actions or evidence that were shown or proven at an earlier time in the past. Example: "The researchers had demonstrated before that their method was effective in reducing errors."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

As we had demonstrated before, here we also determined and demonstrated by western blotting that the differences we were observing in ERK activation were not due to differences in FLAG-GPR54 expression levels between the KO cells and their WT parental control cells (Fig. 3C).

Plosone

We had demonstrated before that on complex media containing lactate Psd1p became paramount as a PE synthesizing enzyme, and even exogenous supply of Etn could not restore the cellular and mitochondrial levels of PE [31].

Biochimica et Biophysica Acta - General Subjects

To compare the transcriptomes of resting memory CD8+ T cells from spleen and BM, we isolated CD44+CD127+CD8+ T cells from spleen and BM (Supporting Information Fig. 5), using an approach that we had demonstrated before to conserve the in vivo gene expression [ 37].

European Journal of Immunology

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

"And that's something David has demonstrated before," the executive added, referring to Mr. Bell's tenure as chairman and chief executive at True North Communications before joining Interpublic.

The New York Times

As we have demonstrated before, there was no RVH in our normoxic SERT+ mice.

Cardiovascular Research

Businesses are made up of people and people have demonstrated before a tremendous capacity to change and adapt.

The Guardian

It has demonstrated before that the pH range for most algal species is between 7 and 9.

International Journal of Energy and Environmental Engineering

The practicability and effectiveness of ultrashort picosecond lasers for cleaning artworks has demonstrated before with satisfactory and gentle cleaning results [12 14].

Heritage Science

Such a project requires an almost obsessive commitment to conservation, a kind of devotion that Fay, affiliated with the Wildlife Conservation Society (WCS) in New York City, has demonstrated before.

Science Magazine

Furthermore we have demonstrated before that the combination of both herbs has a strong anti-inflammatory activity equivalent to topical steroids, and reduce the release of mediators from mast cells upon stimulation, without any impairment of nasal ciliary beat frequency in human tissue [17].

Clinical Phytoscience

City planners have demonstrated before that traffic jams can be measured in lost profits.

Huffington Post

Expert writing Tips

Best practice

When using "had demonstrated before", ensure the context clearly indicates what was demonstrated and when it was demonstrated. This helps avoid ambiguity and strengthens the clarity of your writing.

Common error

Avoid using "had demonstrated before" in simple contexts where a more direct phrase like "previously showed" or "already proved" would suffice. Overusing complex phrasing can make your writing sound unnecessarily convoluted.

Linguistic Context

The phrase "had demonstrated before" functions as a past perfect marker indicating that a demonstration or proof occurred at an earlier time relative to another point in the past. As noted by Ludwig AI, it is grammatically correct and usable in written English.

Expression frequency: Rare

Frequent in

Science

73%

News & Media

21%

Formal & Business

6%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "had demonstrated before" is a grammatically correct phrase used to reference prior evidence or findings. Ludwig AI indicates that this phrase is suitable for formal and academic writing. While not exceedingly common, it effectively serves to connect past demonstrations with present contexts. When writing, consider whether a simpler alternative such as "previously demonstrated" or "already proven" might be more appropriate, depending on the level of formality desired. Predominantly found in scientific and news media sources, the phrase maintains a formal register.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

previously demonstrated

This alternative is more concise and directly states that something was shown earlier.

shown previously

This alternative is a passive construction with similar meaning and brevity.

had proven earlier

This alternative uses "proven" instead of "demonstrated", suggesting a higher degree of certainty.

established beforehand

This alternative is a more formal way of saying something was shown before.

had shown in the past

This option emphasizes that the demonstration occurred sometime in the past.

as we have indicated before

This alternative adds a personal touch, indicating the speaker or writer was involved.

we have already demonstrated

This alternative emphasizes the completion of the demonstration.

it was earlier shown

This option is a passive and impersonal construction.

previously ascertained

This alternative is more formal, suggesting that the demonstration led to a confirmed finding.

earlier validated

This alternative focuses on the confirmation aspect of demonstrating something.

FAQs

What is the difference between "had demonstrated before" and "previously demonstrated"?

While both phrases convey the same meaning, "had demonstrated before" is a more verbose construction. "Previously demonstrated" is more concise and often preferred for its directness.

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

You can use "had demonstrated before" to refer to a previous instance where something was shown or proven. For example: "The researchers had demonstrated before that their method was effective."

What are some alternatives to "had demonstrated before"?

Some alternatives include "previously shown", "already proven", or "established earlier". The best choice depends on the specific context and desired level of formality.

Is "had demonstrated before" formal or informal?

"Had demonstrated before" is generally considered a formal phrase, suitable for academic or professional writing. Simpler alternatives may be more appropriate for informal contexts.