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
as it passed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as it passed" is correct and usable in written English.
It can be used to describe something that occurred or was observed while something else was in motion or transitioning. Example: "The car sped by, and I caught a glimpse of the driver as it passed."
✓ Grammatically correct
News & Media
Science
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
58 human-written examples
As it passed 49th Street, spectators reacted coolly.
News & Media
As it passed, a wide-eyed teenager stared out.
News & Media
It appeared to tiptoe as it passed within earshot of a lazy beached seal.
News & Media
"Forty-four miles an hour," said Eric Schure, 20, as it passed his radar gun.
News & Media
Yet he didn't see this light as it passed down the passageway to his left.
News & Media
Even as it passed, the Democrat-controlled Senate prepared to kill the legislation within hours.
News & Media
Radio contact was lost with the plane as it passed north of Gainesville, Fla.
News & Media
An obsolete, daring technological marvel: people stood out on the rooftops as it passed.
News & Media
As it passed, the crowd burst into a full-throated shout of "Ali!
News & Media
"It had to pass exactly as it passed out of the House".
News & Media
It was heading west on 43rd Street, and as it passed Broadway, it picked up speed.
News & Media
Expert writing Tips
Best practice
Use "as it passed" to clearly indicate that an event occurred concurrently with something moving or transitioning. This can help establish a sense of time and sequence in your writing.
Common error
Avoid using "as it passed" when you mean to describe an event that happened after something moved by. Ensure the action described coincides with the movement itself, not the aftermath.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as it passed" functions as a temporal conjunction, linking an action or observation to the moment something is in motion. Ludwig AI provides numerous examples where this phrase introduces a clause describing what happened during the act of passing.
Frequent in
News & Media
58%
Wiki
20%
Science
12%
Less common in
Formal & Business
3%
Encyclopedias
3%
Reference
1%
Ludwig's WRAP-UP
In summary, the phrase "as it passed" functions as a temporal conjunction to describe actions happening concurrently with the movement of an object or entity. Ludwig AI confirms that it is grammatically correct and frequently used in news, science, and wiki contexts. While generally neutral in register, the phrase benefits from the alternative phrasing options like "while it was passing" or "when it went by" to add nuance to your writing. Remember to use "as it passed" to describe a temporal co-occurrence, not a subsequence, and be mindful of its role in conveying dynamic scenes.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
while it was passing
Replaces "as" with "while" and uses the continuous tense "was passing" for emphasis on the ongoing action.
as it moved past
Replaces "passed" with "moved past", highlighting the motion.
when it went by
Uses the simpler verb "went by" instead of "passed", making it more informal.
on its way past
Emphasizes that something is on a journey while it passes a certain point.
during its passage
Uses a noun phrase to describe the event of passing, focusing on the duration.
as it proceeded
Replaces "passed" with "proceeded", giving a sense of orderly movement.
as it traversed
Uses the more formal verb "traversed" to indicate movement across an area.
during its transit
Emphasizes the act of passing through a specific area or point.
in its wake
Focuses on what happens after something passes, referring to its consequences or effects.
while in motion
Focuses on the state of being in motion as a defining characteristic of the passing action.
FAQs
How can I use "as it passed" in a sentence?
The phrase "as it passed" is used to describe something happening while something else is moving. For instance, "The crowd cheered "as it passed" the finish line" indicates the cheering occurred during the vehicle's movement.
What are some alternatives to "as it passed"?
You can use alternatives like "while it was passing", "when it went by", or "as it moved past", depending on the context and desired level of formality.
Is it correct to say "as it passing" instead of "as it passed"?
No, "as it passing" is grammatically incorrect. The correct form is ""as it passed"", using the past tense of the verb "pass."
What's the difference between "as it passed" and "after it passed"?
"As it passed" implies the event happened during the motion, while "after it passed" means the event occurred subsequently.
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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested