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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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are in operation

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'are in operation' is correct and can be used in written English.
Example: The new traffic lights on Main Street are now in operation, making it much safer for drivers and pedestrians to cross the road.

✓ Grammatically correct

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

Today only four are in operation.

News & Media

The Economist

Today, 15 are in operation.

News & Media

The New York Times

Road closures are in operation.

News & Media

The Guardian

"Wait until the new wineries are in operation.

Of those, 10,200 first-generation machines are in operation.

News & Media

The Guardian

Narratives of instability and dissolution are in operation.

Three are in operation at any one time, it added.

News & Media

The Guardian

Furnaces with capacities up to 130 tons are in operation.

Fully automated "lights-out" fabs are in operation.

News & Media

The Economist

"Once the gates are in operation there will be a much better management of the lagoon".

News & Media

The Guardian

"Courts cannot enforce those acts until they are in operation," Judge Ngoepe said.

News & Media

The New York Times
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Expert writing Tips

Best practice

When describing systems or processes, use "are in operation" to clearly indicate that they are currently functioning as intended.

Common error

Avoid using "are in operation" when the context is unclear. Always specify what exactly is "in operation" to prevent confusion. For instance, instead of saying 'The systems are in operation', specify 'The newly installed security systems are in operation'.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "are in operation" functions as a verb phrase indicating that something is currently active, functioning, or being utilized. Ludwig AI confirms the correctness and common usage of this phrase.

Expression frequency: Very common

Frequent in

News & Media

34%

Science

31%

Encyclopedias

17%

Less common in

Wiki

5%

Formal & Business

5%

Social Media

0%

Ludwig's WRAP-UP

The phrase "are in operation" is a versatile and grammatically sound expression used to indicate that something is currently functioning or being utilized. As confirmed by Ludwig AI, it enjoys widespread usage across diverse fields, notably in news, science, and encyclopedic content. While "are in operation" is appropriate for both formal and informal communication, clarity is crucial to avoid ambiguity and ensure the context is well-defined. Alternatives such as "are functioning" or "are running", can provide similar meanings. By understanding the function, communicative purpose, and register, writers can effectively use "are in operation" to convey the status of systems, equipment, and processes.

FAQs

What does "are in operation" mean?

The phrase "are in operation" means that something is currently functioning, running, or being used. It indicates a state of activity or active service.

How can I use "are in operation" in a sentence?

You can use "are in operation" to describe systems, equipment, or processes that are currently running or active. For example: "The new traffic lights "are functioning" effectively", or "The hospital's emergency generators "are working" properly".

What are some alternatives to "are in operation"?

Alternatives to "are in operation" include "are functioning", "are running", "are active", and "are in service". The best choice depends on the specific context.

Is it better to say "are in operation" or "are operating"?

Both "are in operation" and "are operating" are grammatically correct, but they have slightly different connotations. "Are in operation" often implies a state of being actively used or functioning, whereas "are operating" emphasizes the process of performing a task. The choice depends on the specific meaning you want to convey.

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Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: