was in operation

USAGE SUMMARY

The phrase "was in operation" is correct and usable in written English.
It can be used to describe a state of functioning or activity, often in reference to machinery, systems, or organizations. Example: "The factory was in operation throughout the night to meet the production deadline."

✓ Grammatically correct

News & Media

Academia

Science

Encyclopedias

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

It was in operation from 1964 to 1970.

Columbia University

"I wouldn't have come if this was in operation".

The New York Times

Shortly after it was in operation I managed to hunt down the remaining bugs.

Stanford University

By July, the computer was in operation for two shifts each weekday.

Princeton University

Only one refinery, in Zawiya, was in operation during the conflict.

The Guardian

Reporters, invited to tour the plant, saw it was in operation.

The New York Times

The ventilating equipment was in operation, and Halecki wore a gas mask during the entire period that he worked.

Cornell University

After his family clothing store was in operation for more than 30 years, Luis Florez was forced to close it.

The Washington Post

Though the Pony Express was in operation for only 18 months, it became an enduring image of the Old West.

The New York Times

Instead, he has tacitly accepted one was in operation, and blamed his aide for acting in an "unauthorised way".

The Guardian

"Horror House was a dark ride, but when it was in operation, this stretch was the only completely dark part.

The Guardian - Books

Expert writing Tips

Best practice

When describing the duration of an activity, clearly specify the start and end dates or the length of time that something "was in operation".

Common error

Avoid using "was in operation" when referring to a potential or planned activity. This phrase indicates an actual, ongoing process, not a hypothetical one.

Linguistic Context

The phrase "was in operation" functions as a verb phrase indicating that something was actively working or functioning during a specific period. Ludwig confirms its grammatical correctness and usability.

Expression frequency: Very common

Frequent in

News & Media

35%

Academia

30%

Science

15%

Less common in

Encyclopedias

10%

Wiki

10%

Formal & Business

0%

Ludwig's WRAP-UP

The phrase "was in operation" is a versatile and grammatically sound way to describe the past functionality of something, whether it's a machine, a system, or an organization. As Ludwig confirms, it is widely used across various contexts, from news and media to academic and scientific publications. While alternatives like "was functioning" or "was running" exist, "was in operation" provides a specific nuance that emphasizes the active and functional state during a particular timeframe. Remember to use it to indicate an actual, ongoing process and avoid using it for potential or planned activities. The phrase's high frequency and presence in authoritative sources underscore its reliability and widespread acceptance in English writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

was functioning

Replaces "operation" with "functioning", focusing on the act of performing a function.

was operational

Uses an adjective to describe the state of being in operation.

was running

Uses the verb "run" to imply continuous activity or operation.

was active

Emphasizes the state of being in action rather than the process of operating.

was working

Focuses on the performance of work or tasks.

was in service

Implies that something was available and ready for use.

was up and running

Adds a sense of readiness and availability.

was in effect

Suggests that a rule, law, or system was active and influencing events.

was live

Often used in contexts involving broadcasting or real-time systems.

was underway

Indicates that a process or activity had commenced and was progressing.

FAQs

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

Use "was in operation" to describe something that was actively functioning or running during a specific period. For example, "The factory "was in operation" 24 hours a day to meet demand."

What's a simple substitute for "was in operation"?

You can use simpler alternatives like "was running", "was working", or "was active" depending on the specific context.

How does "was in operation" differ from "is in operation"?

"Was in operation" refers to a past state of activity, while "is in operation" indicates that something is currently active. For example, "The old mill "was in operation" until 1950" versus "The new plant "is in operation" now."

Is it better to say "was in operation" or "was operational"?

Both phrases are grammatically correct and have similar meanings. "Was in operation" emphasizes the process of functioning, while "was operational" emphasizes the state of being ready to function. The choice depends on the specific nuance you want to convey.