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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
left on
Grammar usage guide and real-world examplesUSAGE SUMMARY
"left on" is a correct and usable phrase in written English.
It is typically used to describe something that has been left in a particular place or state. For example: "The lights were left on overnight, so the battery died."
✓ Grammatically correct
News & Media
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
Lens cap left on again?
News & Media
(Crust left on, thank you very much).
News & Media
"He left on 23 July.
News & Media
"She was left on that one medication.
News & Media
She left on Monday.
News & Media
Mr. Bahrami left on Monday.
News & Media
They left on May 5.
News & Media
Turning left on a plane.
News & Media
Four races are left on the schedule.
News & Media
There was nothing left on the plate.
News & Media
Amendments were left on the table.
News & Media
Expert writing Tips
Best practice
When using "left on" to describe the status of a device (e.g. lights, stove), ensure the context clearly indicates that it was unintentionally or negligently left in that state. For instance: "The stove was "left on" all night, posing a significant fire hazard."
Common error
Avoid using "left on" when you mean 'departed' or 'started a journey'. Instead of saying "He "left on" Monday", use "He departed on Monday" for clarity.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "left on" primarily functions as a phrasal verb, often used in a passive voice construction. It describes a state or condition resulting from an action of leaving something in a particular state or continuing an action. Ludwig AI indicates that this phrase is grammatically correct and widely usable.
Frequent in
News & Media
85%
Formal & Business
5%
Wiki
3%
Less common in
Science
2%
Encyclopedias
1%
Reference
1%
Ludwig's WRAP-UP
In summary, the phrase "left on" is a versatile phrasal verb commonly used to describe the state of something being unintentionally or deliberately allowed to remain in a specific state or location. As Ludwig AI confirms, it's grammatically sound and widely applicable. It finds frequent usage in news and media contexts, offering a neutral tone suitable for diverse situations. When considering alternative phrasing, options such as "remained active" or "stayed in operation" can provide nuanced replacements depending on the specific context. It's crucial to differentiate its meaning from similar phrases like "left alone" to avoid miscommunication. The phrase is considered very common and is found across various authoritative sources, including the The New York Times and The Guardian.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
remained active
Focuses on the continuation of an action or state, emphasizing the active aspect.
stayed in operation
Highlights the ongoing functioning of something, particularly a device or system.
was kept running
Emphasizes the continuous operation of a machine or process due to an action.
departed on
Indicates the act of starting a journey on a specific date or mode of transportation.
relied upon
Focuses on the dependence on something or someone, changing the focus from physical state to reliance.
was abandoned at
Highlights the act of leaving something behind in a specific location, often with negative connotations.
entrusted to
Shifts the meaning to assigning responsibility or care to someone or something.
quit on
Emphasizes the action of abandoning something, often abruptly or unexpectedly.
hinged on
Highlights the dependence on something, especially in terms of a decision or outcome.
was predicated on
Emphasizes that something is based or founded on a particular condition or assumption.
FAQs
How can I use "left on" in a sentence?
What are some alternatives to "left on"?
Depending on the context, you could use phrases like "remained active", "stayed in operation", or "was kept running" as alternatives to "left on".
Is it correct to say "I left on good terms"?
Yes, "I "left on" good terms" is a common and correct way to express that you ended a relationship or job amicably.
What's the difference between "left on" and "left alone"?
"Left on" implies that something was unintentionally kept in a certain state, while "left alone" means someone or something was not disturbed or bothered. The contexts are quite different.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested