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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
was running late
Grammar usage guide and real-world examplesUSAGE SUMMARY
"was running late" is correct and usable in written English. You can use it when describing someone who is behind schedule or not on time. Example: She was running late for her meeting. Alternative expressions include "was delayed" and "was behind schedule."
✓ Grammatically correct
News & Media
Formal & Business
Academia
Alternative expressions(18)
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
59 human-written examples
Meanwhile, he was running late.
News & Media
Dr. Flaherty was running late.
News & Media
Obama was running late.
News & Media
He was running late, he said.
News & Media
But Ms. Hill was running late.
News & Media
I was running late for a flight.
News & Media
He was running late today".
News & Media
But Dundy was running late.
News & Media
(The show was running late).
News & Media
Ms. Mayer was running late.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
JAVIER CORRAL is running late.
News & Media
Expert writing Tips
Best practice
When using this phrase in a formal narrative, consider specifying what the subject was late for to provide clearer context, such as "was running late for the keynote address".
Common error
Avoid using "was running late" when the lateness is a permanent state or a fixed deadline. For example, if a report is past its due date, it is better to say the report "is overdue" rather than "is running late", as the latter implies a person in motion or an ongoing event.
Source & Trust
96%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was running late" functions as a verb phrase in the past continuous tense. It combines the auxiliary verb "was" with the present participle "running" and the adjective/adverb "late". In the examples provided by Ludwig, it serves to provide narrative background or an excuse for a specific situation.
Frequent in
News & Media
85%
Formal & Business
10%
Academia
5%
Less common in
Science
2%
Wiki
2%
Social Media
1%
Ludwig's WRAP-UP
The phrase "was running late" is a highly versatile and correct idiom in the English language. According to Ludwig AI, it is Very common across all major media outlets, indicating its total acceptance in both formal and informal writing. It is particularly effective in narrative contexts to describe a subject in the process of being behind schedule. While alternatives like "<a href="/s/was+delayed" target="_blank" rel="alternative">was delayed" offer a more passive tone, "was running late" remains the standard choice for active descriptions of tardiness. Writers should use it with confidence to add a natural, descriptive flow to their prose.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
was behind schedule
More formal and often used in professional or project management contexts.
was running behind
A very close idiomatic synonym that emphasizes the process of falling behind.
was not on time
A more literal and direct way to express the lack of punctuality.
was delayed
Focuses on the external cause of being late rather than the person's actions.
was held up
Suggests that an unforeseen event or obstacle caused the lateness.
was tardy
A more formal or clinical term often used in school or official records.
had fallen behind
Implies a gradual loss of time relative to a plan or sequence.
was overdue
Typically refers to an expected arrival or the completion of a task.
was cutting it close
Describes someone who is at risk of being late but might still make it.
was lagging
Suggests a lack of speed or falling behind a moving group or pace.
FAQs
How do I use "was running late" in a sentence?
You can use "was running late" to describe a person or event behind schedule, for example: "The professor <a href="/s/was+running+late" target="_blank" rel="alternative">was running late due to the heavy snow."
What is a more formal way to say someone "was running late"?
In professional writing, you might prefer "<a href="/s/was+behind+schedule" target="_blank" rel="alternative">was behind schedule" or "<a href="/s/was+delayed" target="_blank" rel="alternative">was delayed" to maintain a more objective tone.
Is "was running late" grammatically correct?
Yes, it is perfectly correct. It uses the past continuous form of the verb "run" to describe an ongoing state of being behind time in the past.
What is the difference between "was running late" and "was late"?
While "was late" is a simple statement of fact, "<a href="/s/was+running+late" target="_blank" rel="alternative">was running late" emphasizes the process or the duration of being behind schedule as it was happening.
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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
96%
Authority and reliability
4.9/5
Expert rating
Real-world application tested