have demonstrated previously

USAGE SUMMARY

The phrase "have demonstrated previously" is correct and usable in written English.
You can use it when referring to actions or evidence that were shown or proven in the past. Example: "The researchers have demonstrated previously that this method is effective in reducing errors."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

We have demonstrated previously in a multigenerational rat model of intrauterine growth restriction the epigenetic heritability of adult metabolic syndrome in a F2 generation.

American Journal of Obstetrics and Gynecology

We have demonstrated previously that the interaction between N-terminal catalytic and C-terminal cell wall binding domains of mycobacteriophage D29 endolysin makes the enzyme inactive in Escherichia coli.

FEBS Letters

We have demonstrated previously that patients and mice with signal transducer and activator of transcription 3 (STAT3) mutations (autosomal dominant hyper-IgE syndrome [AD-HIES]) are partially protected from anaphylaxis.

Journal of Allergy and Clinical Immunology

Using this strategy, we have demonstrated previously that constitutive transcription initiates primarily at upstream TSS, between −6 and −42 bp.

Plosone

We have demonstrated previously that even silent mutations can affect protein folding and function by altering the rate of protein synthesis [44].

Plosone

As we have demonstrated previously, attenuated CXCL8 production is not attributable to impaired cell viability, as estradiol treatment does not induce apoptosis in M72 monocytes [7].

Plosone

We have demonstrated previously that forced expression of MBP-1 negatively regulates cell growth in a number of human cancer cell lines of various tissue origins [6].

Plosone

We have demonstrated previously that during the GIR, NO is the neurotransmitter released by the gastric afferent fibres to activate the ganglionic neurons [2].

Plosone

We have demonstrated previously that Sp5O WDR neurons receive C-fiber inputs indirectly, through relay interneurons located within the superficial medullary dorsal horn (MDH) laminae [35], [37].

Plosone

We have demonstrated previously that the increased sensitivity of DKO mice to ethanol-induced sedation was accompanied by impaired PKA phosphorylation of target proteins of unknown identity.

Plosone

In this spirit, we are interested in ion channel-DNA chimeras, with an eye to eventually establish mechanical control over these molecules similarly to what we have demonstrated previously with enzymes [7] [9].

Plosone

Expert writing Tips

Best practice

When using "have demonstrated previously", ensure that you provide a clear citation or reference to the prior work to maintain academic integrity and allow readers to verify your claim.

Common error

Avoid using redundant adverbs with "have demonstrated previously". Phrases like "have demonstrated previously in the past" are unnecessary because "previously" already implies a past action. Choose one or the other.

Linguistic Context

The phrase "have demonstrated previously" functions as a retrospective reference, typically used in academic and scientific writing to refer to findings or evidence presented in earlier work. As Ludwig AI underlines, it's a concise way to build upon existing knowledge.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "have demonstrated previously" is a common and grammatically correct phrase used primarily in scientific and academic writing. It serves to reference prior findings, adding context and credibility to new information. As Ludwig AI explains, its formal tone makes it suitable for scholarly publications, but less so for informal settings. When using this phrase, remember to cite the original source and avoid redundant wording. Alternatives such as "have shown before" or "prior studies have demonstrated" can be used depending on the context and desired level of formality.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

prior studies have demonstrated

Highlights that earlier research has shown the same result.

have shown before

Replaces "demonstrated" with "shown" for a less formal tone.

have proven earlier

Substitutes "demonstrated" with "proven" and "previously" with "earlier", emphasizing the confirmation aspect.

we have found in earlier work

Highlights the finding within the context of the authors' previous research.

have established already

Uses "established" instead of "demonstrated", highlighting the confirmed nature of the finding.

we've already established

Uses a contraction and a simpler verb, making it slightly less formal and direct.

have indicated in the past

Replaces "demonstrated" with "indicated" and "previously" with "in the past", softening the claim.

have evidenced before now

Employs "evidenced" to convey the existence of supporting evidence and adds "before now".

it was previously demonstrated that

Changes the sentence structure to passive voice, focusing on the fact rather than the actor.

it is already known that

Focuses on the existing knowledge rather than the act of demonstrating.

FAQs

How do I properly cite a source when using "have demonstrated previously"?

Always include a citation immediately after the phrase, like this: "We "have demonstrated previously" [Author, Year] that..." This gives credit to the original researchers and allows readers to find the source.

What are some alternatives to "have demonstrated previously" for a more formal tone?

For a more formal tone, consider phrases like "it has been established that", "prior research has indicated that", or "previous studies have shown that". These options often appear in academic and scientific writing.

In what contexts is it appropriate to use "have demonstrated previously"?

"Have demonstrated previously" is suitable in academic papers, scientific reports, and other formal writing contexts where you need to refer to prior research or findings. It's less common in informal conversations.

How does "have demonstrated previously" differ from "have shown before"?

"Have demonstrated previously" is more formal and often used in academic writing. "Have shown before" is less formal and can be used in less formal contexts. The choice depends on the tone and audience.