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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
four years have passed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The sentence 'four years have passed' is correct and usable in written English.
You can use this sentence when you want to indicate a period of time has passed, such as in the following example: Since I last saw you, four years have passed.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
it has been four weeks
it has been three
since four years ago
it is four years later
four months have passed
it has been four
it has been four years since
it's been four months since
it has been four years
a period of four years has passed
four years have elapsed
it has taken four years
it has been four months
it has been four times
it has spent four years
we are four years on
it has been four days
four years ago
in the last four years
it has been four decades
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
58 human-written examples
FOUR years have passed.
News & Media
Four years have passed since Justice Alito was confirmed.
News & Media
Four years have passed in joyful ways — Wouldst stay those old times dear?
News & Media
Meanwhile, in Europe, four years have passed since the Continent turned to harsh austerity programs.
News & Media
Nearly four years have passed since the birth of Iran's green movement.
News & Media
But four years have passed, and she now has no intention of supersizing.
News & Media
Four years have passed, and yet his speech on Wednesday was dismally similar to the one he gave in 2009.
News & Media
Almost four years have passed since the accident, and official reports by the Japanese regulatory have given the general description of causes and progressions of the fatal accident.
Science
Four years have passed, but he still won't go near the Catholic church he'd been working at that day.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Sixty-four years have passed since the end of the war.
News & Media
Twenty-four years have passed since the Americans with Disabilities Act became law, expanding civil rights protections.
News & Media
Expert writing Tips
Best practice
Use the phrase "four years have passed" to indicate that a significant period has elapsed since a particular event or point in time, creating a sense of reflection or transition. Ensure the context clearly establishes the starting point to which the four years relate.
Common error
Avoid using "four years have passed" without a clear reference point. For instance, instead of saying "Four years have passed, and things are different", specify "Four years have passed since the new policy was implemented, and things are different now".
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "four years have passed" functions as a temporal marker, indicating the completion of a four-year period since a specific event or point in time. Ludwig AI confirms its correct usage across various contexts.
Frequent in
News & Media
88%
Academia
6%
Science
6%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "four years have passed" is a grammatically sound and frequently used expression to denote the completion of a four-year interval. Ludwig AI confirms this and provides numerous examples across diverse fields. Predominantly found in news and media outlets, it sets a temporal stage for further discussion, adding context and a sense of time having elapsed. While versatile, it's important to ensure that the temporal reference is clearly defined to maintain clarity. Alternative expressions, such as "four years have elapsed" or "it's been four years since", can be employed for slight nuances in tone or emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
four years have elapsed
Replaces "passed" with "elapsed", emphasizing the completion of the time period.
four years have transpired
Substitutes "passed" with "transpired", suggesting the unfolding of events over the time.
it's been four years since
Shifts the focus to the starting point of the four-year period.
the last four years have gone by
Highlights the recent four-year period.
a period of four years has passed
Adds emphasis to the duration of time that has passed.
four years have rolled by
Uses "rolled by" instead of "passed", which is more informal and emphasizes the continuous movement of time.
a quadrennium has gone by
Uses the term 'quadrennium' to specify a four-year period.
it has been four years
Simplifies the sentence structure, focusing on the duration.
we are four years on
Indicates advancement from a certain point in the past, marking a four-year interval.
four years are now in the past
Changes the structure to emphasize that the time period is completed and in the past.
FAQs
How can I use "four years have passed" in a sentence?
You can use "four years have passed" to indicate that a period of four years has elapsed since a particular event. For example, "Four years have passed since the company's initial public offering".
What's the difference between "four years have passed" and "four years have gone by"?
While both phrases convey the same basic meaning, "four years have passed" is slightly more formal, whereas "four years have gone by" might be perceived as more casual.
What can I say instead of "four years have passed"?
You can use alternatives like "four years have elapsed", "it's been four years since", or "a period of four years has passed depending on the context.
Is it grammatically correct to say "four years have passed"?
Yes, it is grammatically correct. The phrase follows standard English grammar rules, using a plural subject ("four years") with a present perfect verb form ("have passed").
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested