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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
while he was walking
Grammar usage guide and real-world examplesUSAGE SUMMARY
"while he was walking" is a correct and usable phrase in written English.
It is commonly used to describe an action that was happening at the same time as another action. Example: "While he was walking to work, he saw a group of children playing in the park." In this example, "while he was walking" indicates that the action of walking and the action of seeing the children happened simultaneously.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(3)
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
Tompkins was injured by defendant's train while he was walking along the tracks.
Academia
While he was walking up the lawn, someone shouted, Mr. Carver said, citing witnesses' accounts.
News & Media
Cavagnoud collided with Anwander while he was walking across a ski run.
News & Media
Too many times, Bam Bam said, gang rivals had beaten him while he was walking home in the dark.
News & Media
Another time, while he was walking around campus with his 6-5 teammate Caris LeVert, they were stopped by people who asked if they played basketball.
News & Media
One day, while he was walking with his father, a teen-age shooting victim stumbled into their path and died in Booker's arms.
News & Media
He and several other detectives staked out the man's home and served him with the protective order while he was walking his dog.
News & Media
The Met released few details about Mr. Levine's fall, saying only that it happened last week while he was walking outside a hotel with a cane.
News & Media
The seeds of Edvard Munch's The Scream were planted while he was walking along a road called LjabrochaussÀen, in Oslo, as the sun went down.
News & Media
Witnesses took pictures of Sanchez immediately after the shooting, and the images helped police arrest him while he was walking on a sidewalk a few blocks away.
News & Media
Arthur Rauhauser, 76, of City Island, saw the body floating yesterday while he was walking along the dock of a shipyard at Pilot Street.
News & Media
Expert writing Tips
Best practice
Use "while he was walking" to clearly indicate that two actions were happening simultaneously. For example, "While he was walking to the store, he realized he had forgotten his wallet."
Common error
Avoid using "when" interchangeably with "while" if you want to emphasize the duration of the first action. "When he was walking" can imply a single point in time, whereas "while he was walking" emphasizes the ongoing nature of the action.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "while he was walking" functions as an adverbial clause of time, modifying the main clause by indicating when the action in the main clause occurred. It sets the temporal context for the primary event. Ludwig confirms this widespread usage.
Frequent in
News & Media
55%
Academia
25%
Science
10%
Less common in
Wiki
5%
Formal & Business
3%
Reference
2%
Ludwig's WRAP-UP
In summary, "while he was walking" functions as an adverbial clause of time, frequently used to establish simultaneous actions and provide temporal context. It maintains a neutral register, making it appropriate for diverse settings. Ludwig confirms its widespread usage, particularly in news and media, academic and scientific contexts. When using the phrase, ensure it accurately reflects the ongoing nature of the action and avoid confusing it with "when" to maintain clarity. Alternatives like "as he walked" or "during his walk" can be used for stylistic variation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
whilst he walked
This alternative uses the word "whilst", which is a slightly more formal synonym for "while".
as he walked
This alternative is a more concise way of expressing simultaneous action, using "as" instead of "while" and omitting "was".
as he strolled
This uses "strolled", implying a leisurely pace of walking, adding a descriptive element.
during his walk
This changes the structure to use a noun phrase, indicating an event that occurred at some point within his walk.
in the course of his walk
This is a more elaborate phrase meaning "during his walk".
on his walk
This phrase uses a prepositional phrase to indicate the time frame during which something occurred.
while in motion
This alternative is very concise and focuses on the state of moving, omitting the personal pronoun and verb 'walking'.
during his ambulation
This uses a more formal term, "ambulation", to refer to walking.
simultaneous to his walk
This alternative uses a more academic tone to mean at the same time of walking.
as he was progressing
This uses "progressing" as the synonym to walking.
FAQs
How to use "while he was walking" in a sentence?
Use "while he was walking" to describe an action happening at the same time as another action. For example, "The dog barked "while he was walking" down the street".
What can I say instead of "while he was walking"?
You can use alternatives such as "as he walked", "during his walk", or "on his walk" depending on the specific context.
Is "while he walked" grammatically correct?
While grammatically understandable, "while he walked" implies a completed action over a period. Using ""while he was walking"" emphasizes the continuous nature of the action when another event occurred.
What's the difference between "when he was walking" and "while he was walking"?
"When he was walking" suggests an action that occurred at a specific moment during the walk, whereas ""while he was walking"" indicates the action happened continuously throughout the duration of the walk.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested