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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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a operation called

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "a operation called" is not correct in English.
It should be "an operation called" due to the vowel sound that begins the word "operation." You can use the corrected phrase when introducing the name of a specific operation in a technical or medical context. Example: "There is an operation called laparoscopic surgery that minimizes recovery time."

⚠ May contain grammatical issues

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

The cement plug was poured into the well last Thursday, after tons of mud had been dumped into the well in a operation called a static kill.

News & Media

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

For some patients who have not had good results with eyedrops, or who have trouble remembering to use the drops every day, a good option is an operation called a trabeculectomy, which creates a new drainage system for the eye.

A: An operation called Triton will be run by the EU's border force, which will be focused on patrolling borders.

News & Media

Independent

"We did an operation called an osteocapsular arthroplasty this morning – an oca is the short term for it," confirmed Dr O'Driscoll, who has been the England and Wales Cricket Board's chosen specialist in this area for several years.

Admiral Allen and BP officials said that efforts to pump mud and cement into the well, an operation called a static kill, would be delayed 24 to 36 hours.

News & Media

The New York Times

He immediately recommended an operation called a laminectomy to relieve the pressure on the nerve between my fourth and fifth vertebrae, which was being crushed and causing me severe pain, a condition called a lumbar stenosis.

News & Media

The Guardian

A group is a set, G, together with an operation (called the group law of G) that combines any two elements a and b to form another element, denoted a b or ab.

In his Skid Row space, An has set up both his home and an operation called Kokiri Lab, a hi-tech "hackerspace" dedicated to the development of wearable technology.

News & Media

The Guardian

To whom it may concern, This is to inform you that we, Anonymous, are organizing an Operation called "Payback is a bitch".

News & Media

TechCrunch

As part of an operation called "BEST", it introduced a common IT system and standards across the group.Before the changes, Nestlé's American factories purchased their raw materials independently.

News & Media

The Economist

If |A| = 1 and (left| P right| > 1) (line 18), an operation called Decomposition is performed on the attribute a stored in A before establishing mappings (lines 19 28).

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Expert writing Tips

Best practice

Always use the correct article ('an' before words starting with a vowel sound) to ensure grammatical accuracy. Remember it's "an operation", not "a operation".

Common error

Avoid using "a" before words that begin with a vowel sound. Always double-check the article before nouns like 'operation', 'event', or 'instance' to prevent grammatical errors.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

79%

Authority and reliability

2.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "a operation called" attempts to introduce a named activity or process. However, it is grammatically flawed due to the incorrect use of the article "a" instead of "an". While the example provided by Ludwig uses this phrase, the AI flags it as incorrect.

Expression frequency: Rare

Frequent in

News & Media

33%

Encyclopedias

33%

Science

33%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "a operation called" is grammatically incorrect; the correct form is "an operation called". The error arises from using "a" before a word that begins with a vowel sound. Ludwig AI identified the grammatical error. To maintain clarity and professionalism, use the corrected phrase or alternatives like "a procedure called" or "a process known as". Ensure the correct article is used to avoid detracting from the intended communication.

FAQs

Why is it incorrect to say "a operation"?

The correct phrasing is "an operation" because the word "operation" begins with a vowel sound. In English grammar, we use "an" before words that start with a vowel sound, and "a" before words that start with a consonant sound.

What are some alternatives to "a operation called" that correct the grammar?

How do I know when to use 'a' versus 'an'?

Use "an" before words that begin with a vowel sound (a, e, i, o, u). Use "a" before words that begin with a consonant sound. For example, "a cat" but "an apple".

Can I use "a operation called" in any context?

While technically grammatically incorrect, you might encounter "a operation called" in informal speech or writing. However, for clarity and professionalism, it's best to use "an operation called" or a similar, grammatically correct alternative.

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Source & Trust

79%

Authority and reliability

2.5/5

Expert rating

Real-world application tested

Most frequent sentences: