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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
years in which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "years in which" is correct and usable in written English.
You can use it to refer to a specific period of time in the past or present. For example, "The past few years in which I've lived in this city have been the best of my life."
✓ Grammatically correct
News & Media
Academia
Science
Formal & Business
Wiki
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
60 human-written examples
Ten years passed, years in which I did agreeably little.
News & Media
In the 40 years in which the S.&P.
News & Media
Mr Obama has two years in which to change.
News & Media
This index enables searching by the year or approximate years in which a papyrus was written.
(2 Attribution of moving expense deduction to taxable years in which services are performed.
Academia
Those are the very years in which social networking took the world by storm.
Since women died so young, they had only around thirteen years in which to bear children.
Academia
They will have two years in which to shape the post-Brexit economy.
News & Media
Then there are those short years in which everything changes all at once.
News & Media
Palmer now has six years in which to make Aston profitable and self-financing.
News & Media
After nearly 100 years in which suburban growth outpaced urban, millennials are reversing the trend.
News & Media
Expert writing Tips
Best practice
When using "years in which", ensure the clause following it clearly specifies the condition or event that characterizes those years. For instance, "The years in which the economy boomed" provides clear context.
Common error
Avoid vague references by always specifying what makes those "years in which" distinct. Saying "The years in which things happened" is too general; be specific about what 'things' you're referring to.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "years in which" functions as a relative clause introducing a period defined by specific characteristics or events. It connects a time frame to a particular condition or occurrence, as demonstrated by Ludwig's examples, such as "years in which social networking took the world by storm."
Frequent in
News & Media
41%
Academia
22%
Science
20%
Less common in
Wiki
7%
Formal & Business
7%
Reference
0%
Ludwig's WRAP-UP
The phrase "years in which" is a versatile relative clause used to specify a period characterized by particular events or conditions. Ludwig AI confirms its grammatical correctness and usability. With a "Very common" frequency, it appears across diverse sources, from News & Media to Academia and Science. To ensure clarity, specify the distinctive events of those years and use it to add context to the discussed period. Alternatives include "during the years that" and "throughout the period when", providing subtle variations in emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
during the years that
This alternative replaces "in which" with "that", maintaining the same meaning but with a slightly different syntactic structure.
over the years that
Replaces "in which" with "that" and adds "over" to indicate a duration across the years.
in those years when
This alternative emphasizes specific years and uses "when" to connect to the condition.
throughout the period when
This phrase uses "period" instead of "years", providing a broader sense of time, and "when" instead of "in which".
within the years that
This option highlights that something occurs inside the timeframe, replacing "in which" with "that".
during the time that
Uses "time" instead of "years", which can be useful when the specific duration is not limited to years.
for the years that
This variation uses "for" to specify a duration related to the years, replacing "in which" with "that".
in the course of the years when
This is a more formal and extended version, replacing "in which" with "when" to relate events.
through the years where
While less common, this uses "where" instead of "in which", implying a condition or state during those years.
in the years as
This alternative uses "as" to connect the years with an event or state, differing slightly in grammatical structure.
FAQs
How can I use "years in which" in a sentence?
Use "years in which" to specify a period marked by a particular event or condition. For example, "The "years in which" she studied abroad were transformative."
What are some alternatives to "years in which"?
You can use alternatives such as "during the years that", "throughout the period when", or "in those years when", depending on the specific nuance you want to convey.
Is it correct to say "during the years that" instead of "years in which"?
Yes, "during the years that" is a correct and often interchangeable alternative to "years in which". The choice often depends on stylistic preference.
What's the difference between "years in which" and "in the years when"?
"Years in which" emphasizes the period, while "in the years when" focuses on the specific instances or events occurring during those years. The difference is subtle, but "in the years when" might be preferred when highlighting events.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested