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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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how long it persists

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "how long it persists" is correct and usable in written English.
You can use it when discussing the duration of a condition, phenomenon, or effect. Example: "The doctor explained that we need to monitor the symptoms and determine how long it persists."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

"The question is how long it persists," Ms. Meyer said.

News & Media

The New York Times

Whether this recession fundamentally alters the politics of the economy depends to some extent on how long it persists.

News & Media

The New York Times

The better question, then, is not whether the movement in the polls toward Mr. Obama is "real," but rather how much more of it (if any) he will get, and how long it persists.

News & Media

The New York Times

Risk calculations have focused on severity of weight gain alone and not how long it persists.

News & Media

BBC

How long it persists is a good indication of the Armagnac's quality.

News & Media

Los Angeles Times

It may be, however, that individuals' utility for a certain state depends both on when that state began and how long it persists (as well as what preceded and follows it).

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Human-verified similar examples from authoritative sources

Similar Expressions

53 human-written examples

Lawyers for the city, who conducted the review in response to a court order to sort out the seriousness of the claims, also found that many records were contradictory or incomplete, making it difficult to determine when an ailment began or how long it persisted.

News & Media

The New York Times

Trump's lead is impressive not only for its size but for how long it has persisted, dating all the way back to August.

News & Media

The New Yorker

Mirror symmetry has long been known at the level of chromosome arrangement in the nucleus [ 22, 23] but the degree to which other levels of cellular structure show this type of symmetry, and how long it may persist after division, remains to be explored.

"For how long?" I persist.

News & Media

The New York Times

Published evidence suggests that inflammation continues after smoking cessation, although there have been no thorough longitudinal studies of how long inflammation persists and whether it is definitely irreversible.

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Expert writing Tips

Best practice

When discussing a condition or effect, clarify what factors might influence how long it persists. For example, specify that "how long the effect of the medication persists depends on the dosage".

Common error

Avoid using the phrase in vague contexts. Instead of saying "it is important to know how long it persists", specify what 'it' refers to. For example, clarify that "it is important to know how long the symptom persists".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "how long it persists" functions as a relative clause, often serving as an interrogative clause embedded within a larger sentence. It introduces a question about the duration of something, as supported by Ludwig's examples.

Expression frequency: Uncommon

Frequent in

Science

43%

News & Media

43%

Encyclopedias

14%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "how long it persists" is a grammatically sound and usable expression for inquiring about or emphasizing the duration of a condition, effect, or phenomenon. Ludwig AI confirms its correctness and provides examples from diverse sources like news outlets and scientific journals. While not extremely common, it's versatile enough for both formal and informal contexts, particularly in science and news. When using this phrase, be specific about what "it" refers to for clarity. Alternatives such as "how long it lasts" or "duration of its persistence" can be used for variety.

FAQs

How can I rephrase "how long it persists"?

Alternatives include "how long it lasts", "how long it continues", or duration of its persistence depending on the context.

Is "how long it persists" grammatically correct?

Yes, "how long it persists" is grammatically correct. It functions as a relative clause and is commonly used in both formal and informal contexts, as seen in the examples provided by Ludwig.

In what contexts is "how long it persists" commonly used?

The phrase is commonly used in scientific, news, and general contexts when discussing the duration of effects, symptoms, or phenomena. Examples include discussions about the persistence of viruses, effects of medication, or economic trends.

What's the difference between "how long it persists" and "how long it lasts"?

While "how long it lasts" is a very similar phrase, "how long it persists" often implies a sense of continued existence despite potential challenges or changes. In many cases, they are interchangeable.

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Source & Trust

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Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: