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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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is operational until

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is operational until" is correct and usable in written English. You can use it to indicate the duration of time that something will remain functional or in service. Example: "The system is operational until the end of the month." Alternative expressions include "is active until," "remains in effect until," and "is in operation until."

✓ Grammatically correct

Science

Wiki

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

The column is operational until the metal ions in the effluent start appearing and for practical purposes the working life of the column is over called breakthrough point.

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

Passenger services operated on the line until 1986 and freight services were operational until 1995.

The canal was operational until 1924.

The airport is not expected to be operational until 2020.

News & Media

The New York Times

The large majority of mines were operational until the 1960s.

The court, based in The Hague, is not likely to be operational until early next year.

News & Media

The New York Times

The DD-21, even if there were no delays, would not be operational until 2010.

News & Media

The New York Times

The £16bn project is not expected to be operational until 2030s.

The East Timor defense force is not expected to be operational until January 2004.

News & Media

The New York Times

Today's passengers must not pay for capacity that will not be operational until the mid-2020s".

News & Media

The Guardian

The elevator won't be operational until tomorrow, so we hope you'll be able to go back then".

News & Media

The New York Times
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Expert writing Tips

Best practice

When using "is operational until", clearly define the subject and the end date or event. For example, "The support line is operational until the end of the business day."

Common error

Avoid using "is operational until" when you mean "is planned to be operational by". The first refers to an existing service, while the second refers to a future state.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

4.2/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is operational until" functions as a predicate adjective describing the state of something being functional up to a certain point in time. As Ludwig AI shows, this indicates a defined period of service or functionality. It sets temporal boundaries.

Expression frequency: Rare

Frequent in

News & Media

33%

Science

33%

Encyclopedias

11%

Less common in

Wiki

11%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "is operational until" is a grammatically sound and generally accepted way to indicate the duration of service or functionality. Although Ludwig AI's analysis classifies it as "rare", it's used across a variety of contexts, from news and media to science and encyclopedia entries. As Ludwig's examples show, the phrase is commonly used when mentioning the lifespan of services, systems, or equipment. When employing this phrase, it's crucial to clearly state what is operational and the exact end date to avoid ambiguity. Despite its infrequent usage, "is operational until" provides a clear and concise way to convey temporal boundaries.

FAQs

How can I use "is operational until" in a sentence?

You can use "is operational until" to specify the period during which a system, service, or piece of equipment will be functional. For example, "The server "remains functional until" the scheduled maintenance window".

What can I say instead of "is operational until"?

Alternatives include phrases like ""remains functional until"", "stays in service until", or "continues to run until", depending on the specific context.

What is the difference between "is operational until" and "will be operational by"?

"Is operational until" refers to something currently working that will stop at a certain point. "Will be operational by" refers to something not yet working, but planned to be in the future. Using the phrases interchangeably could lead to confusion.

Is it correct to say "was operational until"?

Yes, "was operational until" is correct. It indicates that something was functional in the past, up to a specific point. For example, "The old factory "stayed in service until" 1995".

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Source & Trust

86%

Authority and reliability

4.2/5

Expert rating

Real-world application tested

Most frequent sentences: