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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
at a period when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at a period when" is correct and usable in written English.
It can be used to refer to a specific time frame or context in which an event or situation occurs. Example: "The research was conducted at a period when the technology was rapidly evolving."
✓ Grammatically correct
News & Media
Encyclopedias
Science
Alternative expressions(20)
considering that
in a trial where
under the circumstances of
in an era when
in a continent where
given that
in a job where
given recent developments
while
when
in a climate where
given the conditions of
considering the latest developments
during which
in a team where
during a time when
in light of current events
in view of recent events
to a time when
in a circumstance where
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
38 human-written examples
At a period when even beatniks wore ties, it was mindblowing.
News & Media
"I was looking at a period when corn going into ethanol was rising much faster than what they looked at".
News & Media
Emerging at a period when Loaded, Big Beat and Chris Evans reigned supreme, Belle and Sebastian appeared as a radical alternative.
News & Media
Lucienne set out on her career at a period when design was only just beginning to emerge as a recognisable profession.
News & Media
The developers folded with debts of £333,000 (at a period when a pleasant three-bed semi in the town could be had for £750).
News & Media
Joanna Baillie, (born Sept. 11, 1762, Hamilton, Lanark, Scot. died Feb. 23, 1851, Hampstead, London), poet and prolific dramatist whose plays, mainly in verse, were highly praised at a period when serious drama was in decline.
Encyclopedias
Human-verified similar examples from authoritative sources
Similar Expressions
22 human-written examples
"Ten or twenty years from now, I think that [early] period will be looked at as a period when, finally, markets were allowed to rationalize the gas industry," he says.
News & Media
"[And] at least a period when the BBC can scrutinise politicians without fear or favour".
News & Media
It is five years since they lost two in a row in the Premiership at Welford Road, a period when they were below strength because of a World Cup held in New Zealand, and there is no sense of panic at a club that prides itself on consistency.
News & Media
In more than a decade of my tenure at Stonewall – a period when even its most determined detractors, from Lord Tebbit to the Archbishop of Westminster, would not deny its parliamentary effectiveness – we declined to try to find out what thousands of Westminster candidates might claim to think about our issues.
News & Media
From 1986 to 1995, Tisch served as chief executive and chairman of the board at CBS, a period when the nightly newscast of the "Tiffany Network" fell to third place and CBS lost National Football League broadcasts to the upstart Fox Network.
News & Media
Expert writing Tips
Best practice
Use "at a period when" to clearly establish a historical or contextual setting for an event or situation in your writing. This helps readers understand the circumstances surrounding your subject.
Common error
Avoid using "at a period when" excessively, as it can make your writing sound overly formal or repetitive. Consider simpler alternatives like "when" or "during" for a more concise style.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at a period when" functions as a prepositional phrase acting as an adverbial modifier. It introduces a subordinate clause specifying the time or context in which the main clause's action occurs. Ludwig AI confirms its usability in written English.
Frequent in
News & Media
50%
Science
25%
Encyclopedias
14%
Less common in
Wiki
7%
Academia
3%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, the phrase "at a period when" serves as a useful tool for establishing temporal context in writing. While Ludwig AI confirms its grammatical correctness and usability, it's important to be mindful of its potentially formal tone and consider simpler alternatives where appropriate. Common in news, encyclopedic, and scientific content, this phrase helps readers understand the circumstances surrounding the subject matter. Remember to use this phrase judiciously to enhance clarity and avoid unnecessary complexity. Consider using alternatives like "during a time when" or "when" to maintain a concise and engaging writing style.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
when
Simply uses the conjunction "when" to introduce the time-related context.
during a time when
Replaces "at a period" with "during a time", slightly altering the emphasis on duration.
during which
A more formal alternative emphasizing the duration of the time frame.
at a time that
Replaces "period when" with "time that" for a slightly less formal tone.
in an era when
Substitutes "period" with "era", suggesting a longer and more significant time span.
in a phase where
Uses "phase" instead of "period", implying a stage of development or change.
while
A concise alternative, focusing on simultaneous events.
as
A shorter conjunction indicating a concurrent situation.
in those days when
Indicates a past time, adds a nostalgic tone.
at that point in time when
A more verbose version, adding emphasis to a specific moment.
FAQs
How can I use "at a period when" in a sentence?
Use "at a period when" to provide background or context, for example: "The study was conducted at a period when resources were scarce."
What can I say instead of "at a period when"?
You can use alternatives like "during a time when", "in an era when", or "when" depending on the context.
Is it better to use "at a time when" or "at a period when"?
"At a time when" is generally more concise and common. "At a period when" is more formal and emphasizes a longer duration. Choose based on your desired tone and context.
What's the difference between "at a period when" and "during"?
"During" is a preposition that specifies when something happens, while "at a period when" is a phrase that introduces a clause providing more detailed contextual information. For example, "The city thrived during the Renaissance" versus "The city thrived at a period when trade flourished and the arts were celebrated".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested