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
has been turned on
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'has been turned on' is a valid and usable phrase in written English.
You can use this phrase when you want to describe a situation where someone has activated or started a process, machine, device, etc. For example: "The air conditioning has been turned on, so the room is getting cooler."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(16)
has been activated
has been enabled
has been started
has been initiated
has been commenced
has been triggered
has been switched on
has been revolutionized
has been transformed
has been inverted
has been redirected on
has been concentrated on
has been incorporated on
has been transformed on
has been centered on
has been undertaken on
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
A rat can learn to perform one response after a stimulus has been turned on for two seconds and a different response after the stimulus has been turned on for five seconds.
Encyclopedias
This effort has been turned on and off, at different moments, depending on Russia's tactics.
News & Media
It's almost as if a tractor beam has been turned on, and brought the moody, beautifully broken Smith home.
News & Media
The gas has been turned on, and generators are being put in place to get the water supply working.
News & Media
"On, off, on, off, on — " The sexual, as well as the electric, current has been turned on, and a revolution in living is about to be wrought.
News & Media
It was as if the tap marked "people" has been turned on at Olympic Park.
News & Media
Instead, those who see a "smiley balloon" (pictured above) hanging on their screen will know that the feature has been turned on for their account.
News & Media
People are having biometrics appointments and working down the list of requirements now that the green light has been turned on for us.
News & Media
Make your Slinky "dance" to music when it has been turned on!
Wiki
"The law has been turned on its head," said one of its authors, Representative Henry A. Waxman, Democrat of California.
News & Media
"That has been turned on its head".
News & Media
Expert writing Tips
Best practice
Use "has been turned on" when you want to describe the activation of a device, system, or process. Ensure the context clearly indicates what is being activated.
Common error
Avoid using "has been turned on" when an active voice is more appropriate. For example, instead of "The switch has been turned on by John", consider "John turned on the switch" for a more direct and concise sentence.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has been turned on" functions as a passive construction, indicating that an action has been performed on a subject. This construction allows the speaker or writer to focus on the result of the action rather than the actor. Ludwig AI confirms the phrase is valid and usable.
Frequent in
News & Media
55%
Science
25%
Formal & Business
10%
Less common in
Encyclopedias
5%
Wiki
3%
Reference
2%
Ludwig's WRAP-UP
The phrase "has been turned on" is a common and grammatically sound way to express that something has been activated or switched on. Ludwig AI validates its usability in written English. Its function is primarily informative, communicating a change of state. The phrase appears frequently in news media and scientific contexts. Related phrases include "has been activated" and "has been enabled", offering slight variations in emphasis. When writing, it's important to consider the context to determine if an active or passive voice is more appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
has been activated
Focuses on the act of initiating or triggering something.
has been initiated
Emphasizes the starting point or commencement of a process.
has been enabled
Highlights the granting of permission or capability for something to function.
has been started
A more general term for beginning or setting something in motion.
has been commenced
A more formal way of saying something has started.
has been triggered
Highlights that a process or event has been set in motion by something else.
has been switched on
Focuses on the action of using a switch to activate something, more literal.
has been revolutionized
Indicates a fundamental and transformative change.
has been transformed
Highlights a change in form or appearance.
has been inverted
Suggests a reversal or turning upside down of something.
FAQs
How to use "has been turned on" in a sentence?
You can use "has been turned on" to describe the activation of something, like "The lights "has been turned on"" or "The new feature "has been turned on" for all users".
What can I say instead of "has been turned on"?
You can use alternatives like "has been activated", "has been enabled", or "has been started" depending on the specific context.
Which is correct, "has been turned on" or "was turned on"?
"Has been turned on" implies the action happened recently and is still in effect, while "was turned on" simply indicates a past action. The choice depends on whether the state resulting from the action is still relevant.
What's the difference between "has been turned on" and "is turned on"?
"Has been turned on" indicates the action of turning something on occurred in the past, while "is turned on" describes the current state of something being in the 'on' position.
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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