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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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during these period

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "during these period" is not correct in English.
It should be "during this period" or "during these periods" depending on the context. You can use it when referring to a specific timeframe or duration in which something occurs. Example: "During this period, we observed significant changes in the data."

⚠ May contain grammatical issues

Wikipedia

American Journal of Tropical Medicine and Hygiene

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

The auto manufacturers were accused of speeding up work during these period of heavy layoffs, which resulted in a number of wildcat strikes.

Conversely, the proportion of mosquitoes that are caught at times during which most persons are asleep can overestimate or underestimate πi for exophagic and endophagic vectors, respectively, because outdoor catches during these period and indoor catches in the evenings and mornings are included.

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

Moreover, the wave periodicities present during these periods were also quite similar.

Compensation during these periods varies greatly.

Life comes to a standstill during these periods.

The average rise during these periods was 3.5percentt.

News & Media

The New York Times

We don't know what Ming gets up to during these periods.

"Actually, during these periods, artists become even more inventive, despite censorship," Lutfi said.

News & Media

The New Yorker

No offensive military action will be countenanced by Nato during these periods.

News & Media

Independent

He knew to keep mostly to himself during these periods; his tongue-lashings so severe, he would rather not speak at all until the bad weather had cleared.

News & Media

The New Yorker

It's important to make some time for yourself during these periods, this could be going to the gym, going for a run or spending time with family".

News & Media

The Guardian
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Expert writing Tips

Best practice

Always ensure subject-verb agreement. When referring to multiple periods, use the plural form "periods". When referring to a singular period, use "this period".

Common error

Avoid using the singular noun "period" with the demonstrative adjective "these", which is plural. This leads to grammatical errors. Always check number agreement between demonstrative adjectives and nouns.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

70%

Authority and reliability

2.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "during these period" functions as an adverbial prepositional phrase, intended to specify when an action or state occurs. However, the incorrect grammatical construction detracts from its intended function. As Ludwig AI points out, this should be corrected to "during this period" or "during these periods".

Expression frequency: Rare

Frequent in

Science

50%

Wiki

50%

News & Media

0%

Less common in

Formal & Business

0%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "during these period" is grammatically incorrect. The correct forms are "during this period" (singular) or "during these periods" (plural). Ludwig AI emphasizes that accuracy in grammar is crucial for clear communication. While the phrase attempts to provide temporal context, its incorrect form undermines its effectiveness. Ludwig's analysis of usage patterns shows it appearing in a mix of scientific and general contexts, but its rarity suggests caution in formal writing. Alternatives like "throughout these periods" or "in these timeframes" can offer grammatically sound substitutes depending on the specific meaning you wish to convey. Always ensure number agreement between demonstrative adjectives and nouns.

FAQs

What is the correct way to say "during these period"?

The correct phrasing depends on whether you are referring to one period or multiple. Use "during this period" for a single, specific time frame, and "during these periods" for multiple time frames.

How do I decide between "during this period" and "during these periods"?

If you're talking about a single, continuous stretch of time, use "during this period". If you're talking about multiple distinct time frames, use "during these periods".

Are there alternatives to saying "during these periods"?

Yes, depending on the context, you can use phrases like "throughout these periods", "across these intervals", or "over these intervals".

What does "during this period" mean?

It means "at some point in a specific duration of time", such as in the sentence: During this period, economic growth was stagnant.

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Most frequent sentences: