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
is on
Grammar usage guide and real-world examplesUSAGE SUMMARY
Sentence No, the phrase 'is on' is not correct and usable on its own in written English.
When used in conjunction with other words to form an idiomatic phrase or expression, then 'is on' can be used in written English. Example sentence: The next phase of the project is on track; the team expects to have it completed by the end of the month.
⚠ May contain grammatical issues
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
Europe is on fire.
News & Media
That is on management.
News & Media
He is on television.
News & Media
So pressure is on.
News & Media
Broad is on fire!
News & Media
Life is on hold.
News & Media
The rout is on.
News & Media
The fight is on.
News & Media
Lens is on Facebook.
News & Media
Rose is on it".
News & Media
The contest is on.
News & Media
Expert writing Tips
Best practice
When using "is on" to mean something is scheduled, specify the date or time if relevant. For instance, "The event is on Friday."
Common error
Avoid using "is on" as a standalone sentence. It requires a subject to be grammatically correct. Using it alone can sound abrupt or unclear.
Source & Trust
92%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is on" functions as part of a verb phrase, indicating that something is active, scheduled, or in progress. As noted by Ludwig AI, the phrase isn't correct when used on its own and necessitates additional context.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, while the phrase "is on" is frequently used, it's crucial to remember that it's grammatically incomplete on its own. As Ludwig AI pointed out, it needs a subject and context to form a complete sentence. This phrase is commonly found in news and media, indicating that something is active, scheduled, or in progress. For more formal writing, consider using alternatives like "is scheduled" or "is underway". Always ensure that the context is clear when using "is on" to avoid any ambiguity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is scheduled
Indicates a planned or arranged event or activity, emphasizing the time aspect.
is in progress
Highlights the ongoing nature of an action or event, focusing on the activity itself.
is happening
Emphasizes the occurrence or taking place of an event.
is in effect
Indicates that a rule, law, or agreement is currently active and being applied.
is available
Signifies that something is accessible or ready for use.
is being shown
Refers to the presentation or display of something, such as a film or performance.
is being broadcast
Specifically indicates that something is being transmitted via radio or television.
is being played
Implies that a game, music or a recording is currently active or running.
is underway
Formally indicates that something has started and is currently in progress.
is operational
Emphasizes that something is functioning correctly and ready for use.
FAQs
How can I use "is on" correctly in a sentence?
Ensure that "is on" has a subject and context. For example, "The television is on" or "The project is on schedule" are grammatically correct.
What does "is on" mean when referring to an event?
When referring to an event, "is on" typically means that the event is still scheduled and will take place as planned. It's similar to saying the event "is scheduled".
What's a more formal alternative to "is on"?
In formal contexts, you might use alternatives like "is in progress" or "is underway" instead of "is on".
When should I avoid using "is on"?
Avoid using "is on" as a complete sentence without a subject. It's also best to avoid it in very formal writing where more precise language may be preferred.
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
92%
Authority and reliability
3.5/5
Expert rating
Real-world application tested