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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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may have used

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "may have used" is correct and usable in written English.
It is used to express possibility, especially in the past. For example, "He may have used the wrong tool for the job".

✓ Grammatically correct

News & Media

Science

Encyclopedias

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Either side may have used small bombs.

News & Media

The Economist

He may have used stronger terms, according to Bradford.

I may have used the word "whimsical" about it.

News & Media

Independent

Baseball executives presumably wanted to learn from Giambi what kind of performance-enhancing drugs he may have used and when he may have used them.

The police speculated that Mr. Musca may have used a flare to start the fire.

News & Media

The New York Times

They certainly made hammers from stones, which they may have used to tenderize it.

It has been thought that specific artists like Canaletto and Vermeer may have used optical devices.

Gutenberg may have used sand casting to create molds for his mirrors, Mr. Needham said.

Already two Austrians have confessed to team officials that they "may have used illegal methods".

I may have used the phrase from time to time myself.

News & Media

The New Yorker

The first concerns the individuals who may have used UBS accounts to evade taxes.

News & Media

The New York Times
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Expert writing Tips

Best practice

When using "may have used", ensure the context clearly indicates a degree of uncertainty about a past action. If certainty exists, opt for a more definitive verb tense.

Common error

Avoid relying too heavily on "may have used" when presenting speculative information. Vary your language with phrases like "it's possible that", "conceivably", or "evidence suggests" to maintain reader engagement and avoid monotony.

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

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "may have used" functions as an epistemic modal, indicating a degree of possibility or uncertainty regarding a past action. Ludwig shows that it commonly precedes a noun or noun phrase, specifying what was potentially used. The examples demonstrate its role in speculative statements across various contexts.

Expression frequency: Very common

Frequent in

News & Media

79%

Science

12%

Wiki

4%

Less common in

Encyclopedias

2%

Formal & Business

1%

Reference

1%

Ludwig's WRAP-UP

In summary, "may have used" is a versatile phrase expressing possibility regarding a past action. Ludwig AI confirms its grammatical correctness and frequent usage across varied contexts, from news reporting to scientific speculation. While alternatives like "might have employed" exist for specific nuances, "may have used" offers a neutral and widely applicable option. Common mistakes involve overuse or misapplication to present actions, but mindful usage ensures clarity and accuracy. High-quality sources like The New York Times and The Guardian frequently employ this phrase, underscoring its reliability in formal and informal writing. As a reminder, be clear on when certainty exists and avoid overusing the expression in speculative contexts. Overall, it's a valid and useful option in written English.

FAQs

How can I rephrase "may have used" to sound more formal?

In formal contexts, consider alternatives such as "might have employed", "could have utilized", or "potentially applied". Each "might have employed", "could have utilized", and "potentially applied" offers a slightly different nuance of formality and precision.

What's the difference between "may have used" and "might have used"?

"May have used" and "might have used" are often interchangeable, both expressing possibility in the past. However, "might have used" can sometimes imply a slightly lesser degree of certainty or a more remote possibility than "may have used". In most cases, the distinction is subtle.

Is it correct to use "may have used" when referring to current actions?

No, "may have used" refers to a possibility in the past. For current actions, use "may be using" or "might be using" to express present possibility or uncertainty.

What are some common synonyms for "may have used" in scientific writing?

In scientific writing, consider alternatives like "potentially employed", "could have utilized", or "possibly implemented". For example, "The researchers "potentially employed" a new method to analyze the data" instead of saying "The researchers "may have used" a new method".

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Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: