did not established

USAGE SUMMARY

The phrase 'did not established' is correct and usable in written English.
You can use it in situations where something was expected to be established but was not. For example, "Despite their best efforts, the research team did not established a clear cause-and-effect relationship between the two variables."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

4 human-written examples

Notice that the authors did not established in the statement of the previous theorem that M is transitive in the sense of Definition 3.3, but they used it throughout their proof.

Journal of Inequalities and Applications

Moreno et al. [ 21] did not established differences in the levels of fibrin degradation products in their study.

BMC Veterinary Research

Although the practitioners in the network did not established that their decisions could be supported by evidence (this was retrospectively realized by the authors), the results of the study would suggest that introducing guidelines modifies medical practice, making it more conformed with the CPGs and also increased the conformity with evidence-based medicine.

British Journal of Cancer

It is also worth to state that in our study in all patients who experienced chemotherapy delays total number of delayed days exceeded 10 days and this factor could contribute lower survival as in C. I. Nigel et al. study that did not established negative impact of delays on survival, total number of delayed days was lower than ten days in a significant part of patients [ 13].

BMC Cancer

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

They did not establish anyone's guilt or innocence.

The Economist

Piero did not establish a lasting tradition in central Italy.

Encyclopedia Britannica

Biomanipulation alone did not establish a clear-water state or only during a limited period.

Water Research

In the high-intensity treatment, vegetative propagules that did not establish were replanted in years three and four.

Ecological Engineering

Trees did not establish in areas where the introduced plant cover was more than 40%.

Ecological Indicators

If Mueller "did not establish" collusion, why didn't he also refute it?

The Washington Post

For this reason, it held that the affidavit did not establish probable cause.

Cornell University

Expert writing Tips

Best practice

Always use the base form of the verb after "did not". The correct phrase is "did not establish", not "did not established".

Common error

Avoid using the past participle form of a verb (e.g., "established") after the auxiliary verb "did". "Did" already indicates past tense, so the base form of the verb (e.g., "establish") should be used. Always write "did not establish".

Linguistic Context

The phrase "did not established" is intended to function as a negative past tense statement, indicating that something was not proven or set up. Ludwig AI indicates that this is grammatically incorrect; the correct form is "did not establish".

Expression frequency: Rare

Frequent in

Science

60%

News & Media

40%

Formal & Business

0%

Less common in

Encyclopedias

0%

Wiki

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "did not established" is grammatically incorrect. The correct form is "did not establish". While Ludwig AI identifies examples in scientific and news media, the auxiliary verb "did" requires the base form of the verb, not the past participle. When aiming to express that something was not proven, confirmed, or created, it's best to use alternatives such as "did not prove", "failed to establish", or "did not confirm" to maintain grammatical accuracy.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

did not prove

Replaces "established" with "prove", focusing on a lack of demonstration or verification.

failed to establish

Uses "failed" to emphasize the lack of success in establishing something.

did not demonstrate

Substitutes "established" with "demonstrate", highlighting the absence of evidence.

could not establish

Emphasizes the inability to establish something, implying a lack of capacity.

did not confirm

Replaces "establish" with "confirm", focusing on the absence of validation.

did not validate

Similar to "did not confirm", emphasizing a lack of proof or support.

did not determine

Highlights the absence of a definitive finding or decision.

did not ascertain

A more formal way of saying "did not determine", implying a careful investigation.

did not institute

Shifts the focus to the lack of setting up or initiating something.

did not set up

A more informal alternative to "did not institute", implying a lack of preparation or arrangement.

FAQs

What is the correct way to use "establish" in the past tense negative?

The correct way to use "establish" in the past tense negative is with the auxiliary verb "did" followed by "not" and the base form of the verb: "did not establish". For example, "The study "did not establish" a link between the two factors".

What can I say instead of "did not established"?

Instead of "did not established", use ""did not establish"", "failed to establish", or "did not prove" depending on the context.

Is "did not established" grammatically correct?

No, "did not established" is grammatically incorrect. The correct form is ""did not establish"". The auxiliary verb "did" requires the base form of the verb.

How do I avoid making mistakes with past tense negative constructions?

Remember that when using the auxiliary verb "did" to form a negative past tense statement, you should always use the base form of the main verb. For example, it's "I did not go", not "I did not went".