Used and loved by millions
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
roughly three years
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "roughly three years" is correct and usable in written English.
You can use it when you want to indicate an approximate duration of time, often in contexts like project timelines, personal experiences, or historical references. Example: "It took roughly three years to complete the construction of the new bridge."
✓ Grammatically correct
News & Media
Wiki
Science
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
43 human-written examples
billion, roughly three years after the merger.
News & Media
The sum equaled roughly three years of his salary.
News & Media
In roughly three years, it has changed to 'bought'bought
News & Media
If it succeeds, the effort could begin to change consumer computing in roughly three years.
News & Media
In that period, the life expectancy of the richest five per cent of Americans increased by roughly three years.
News & Media
The Carey reference sounds out of date, as does the title of "Double Rainbow," a reference to a YouTube meme that's roughly three years old.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
15 human-written examples
Roughly three years later, the 19-year-old's remains were found in a wooded area near Morgan County.
News & Media
Roughly three years later, Andrew Meyer, Shane Frederick and eight other authors (including me) have published a paper that argues the hard-to-read presentation does not lead to higher performance.
News & Media
Roughly three years ago, we sent a member of our staff to a remote island.
News & Media
Pedoria, who started this inning with the first Red Sox hit of the game roughly three years ago, comes back around.
News & Media
If he was still one of the most serious and consistent talents in the national game it might be somewhat different but unfortunately the last time such a claim could be made on his behalf was roughly three years ago.
News & Media
Expert writing Tips
Best practice
When using "roughly three years", consider your audience. In formal contexts, 'approximately three years' might be more appropriate, while in casual conversation, 'about three years' works well.
Common error
Avoid using "roughly three years" when a more precise figure is available. If you know the exact duration, providing that information enhances credibility.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "roughly three years" functions as an adverbial phrase modifying a verb or clause by specifying the duration of an event or state. As Ludwig AI confirms, this phrase is grammatically correct and suitable for use in written English.
Frequent in
News & Media
65%
Wiki
15%
Science
10%
Less common in
Formal & Business
5%
Reference
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "roughly three years" is a grammatically sound and frequently used expression to denote an approximate duration of time. As Ludwig AI confirms, this phrase is perfectly acceptable in the English language, is primarily found in news and media contexts, and serves the purpose of providing an estimated timeframe without strict precision. For more formal settings, consider alternatives like "approximately three years". While versatile, avoid using the phrase when precise data is accessible. The phrase's wide usage across reputable sources like The New York Times and The Guardian underscores its reliability and appropriateness in diverse writing scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
about three years
A more common and slightly less formal way of saying "roughly three years".
around three years
Similar in meaning to 'about,' indicating an estimated time frame.
nearly three years
Indicates that the duration is close to three years, possibly slightly less.
almost three years
Similar to 'nearly,' suggesting the duration is just shy of three years.
approximately 36 months
Expresses the duration in months, providing a more precise but equivalent timeframe.
in about 36 months
Combines 'about' with the monthly duration for a different emphasis.
something like three years
An informal way to express an estimated duration.
in the neighborhood of three years
A more descriptive and less direct way of indicating an approximate duration.
in the vicinity of three years
Similar to 'in the neighborhood of,' adding a slightly more formal tone.
a little over two and a half years
Breaks down the timeframe to provide a different perspective on the length.
FAQs
How can I use "roughly three years" in a sentence?
You can use "roughly three years" to indicate an approximate period, such as, "The project took "roughly three years" to complete".
What can I say instead of "roughly three years"?
You can use alternatives like "about three years", "approximately three years", or "around three years" depending on the context.
Is it better to say "roughly three years" or "approximately three years"?
Both phrases are correct, but "approximately three years" is generally considered more formal than "roughly three years".
What's the difference between "almost three years" and "roughly three years"?
Almost three years implies a duration slightly less than three years, while "roughly three years" indicates an approximate duration that could be a bit more or less.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested