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
while it was passing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "while it was passing" is correct and usable in written English.
It can be used to describe an action or event occurring during the time something else is happening or moving by. Example: "I noticed the beautiful scenery while it was passing on the train."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(6)
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
4 human-written examples
"A blue car exploded while it was passing the checkpoint," he said.
News & Media
While it was passing through the House of Lords, Lord Reid suggested it would be simpler to amend the Limitation Act 1937, but this was never acted on.
Wiki
Grace had only minor effects on land, although while it was passing through the Azores, islands close to the storm's center recorded winds of up to 44 mph (71 km/h) and moderate rainfall.
Wiki
Shortly after turning to the west, conditions allowed for Huko to re-attain hurricane strength on October 31 while it was passing around 140 mile south of Johnston Atoll.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Publication of a four-year-long Department of Trade and Industry report into the affair, which was already delayed once while it was passed to the police last month, will now be shelved for another few weeks to give ministers time to deal with the inevitable political fall-out.
News & Media
Publication of the results of a four-year-long Department of Trade and Industry investigation into the affair, already delayed once while it was passed to the police last month, will now be shelved for another few weeks to give ministers time to deal with the inevitable political fallout.
News & Media
While it was passed overwhelmingly in urban areas, it's opposed in several rural communities, revealing a deep divide in the state.
News & Media
While it was passed officially in April, the newly reauthorized Older Americans Act has been a lynchpin around which Older Americans Month celebrations have been built this month.
News & Media
Determine in which direction the air flows while it is passing through the forced air system.
Wiki
Just one thing is missing from this quintessentially Venetian scene, and while it is passes unnoticed by most visitors it is an absence that aficionados see as a cruel blow to the city's heritage.
News & Media
2. the detected obstacle is not observed in the image while it is passed by the robot.
Science
Expert writing Tips
Best practice
Use "while it was passing" to clearly indicate that an action occurred concurrently with something else moving or progressing.
Common error
Avoid using "while it was passing" when the actions are not truly simultaneous or directly related to the movement. Ensure the event described actually happens during the passage, not simply before or after.
Source & Trust
83%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "while it was passing" functions as an adverbial clause, modifying a verb by indicating the time during which an action occurs. It provides temporal context, specifying when something happened in relation to something else's movement. Ludwig AI confirms this usage with examples showing events concurrent with passing objects or processes.
Frequent in
News & Media
50%
Wiki
25%
Science
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "while it was passing" is a grammatically correct and usable adverbial clause that indicates an event occurring concurrently with the movement or progression of something else. As confirmed by Ludwig AI, it is commonly found in news, wiki and science-related context. Although rated uncommon, using alternatives like "as it went by" or "during its passage" might be more appropriate depending on context. To prevent the common error of misunderstanding concurrency, remember to use this expression to relate the passing with another action during a specific moment. The phrase is found most often in reputable sources, like The Washington Post and The Guardian, making it a reliable expression.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as it went by
Replaces "while" with "as" and uses the simpler verb "went by" instead of "was passing".
as it moved past
Similar to "as it went by", but uses "moved past" to emphasize the movement.
during its passage
Uses a noun phrase instead of a clause, focusing on the period of movement.
as it proceeded
Uses a more formal verb "proceeded" instead of "passing".
while in motion
Emphasizes the continuous movement during the event.
as it traversed
A more formal alternative to "as it moved past".
during its traversal
A more formal alternative to "during its passage".
during the transit
Similar to "in transit", but slightly more descriptive.
in transit
A concise phrase indicating the state of being transported or moving.
while underway
Indicates something happening during a journey or process.
FAQs
How can I use "while it was passing" in a sentence?
Use "while it was passing" to describe an event that occurred during the movement of something else. For example, "I saw a beautiful rainbow "while it was passing" over the mountains."
What's a simpler way to say "while it was passing"?
Alternatives include "as it went by" or "during its passage", which offer similar meanings with slightly different wording.
Is it correct to use "while it passed" instead of "while it was passing"?
While "while it passed" isn't necessarily incorrect, "while it was passing" emphasizes the continuous action of passing, making it more suitable for describing events occurring during movement.
How does "while it was passing" differ from "when it passed"?
"While it was passing" implies an action occurring during the process of passing. "When it passed" implies an action that occurred at the moment of passing, or immediately after.
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
83%
Authority and reliability
4.3/5
Expert rating
Real-world application tested