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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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has known

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase 'has known' is correct and usable in written English.
It can be used when referring to something that someone has been aware of for some time. For example, "He has known his neighbor for over five years."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

He has known all along.

Rusalka has known true love.

News & Media

Independent

Cyprus has known its share of adversity.

News & Media

The New York Times

He has known about them for years.

News & Media

Independent

The recession has known no international borders.

News & Media

Independent

She has known these boys for years".

News & Media

The New York Times

Tanning has known four French presidents.

News & Media

The New Yorker

He has known this ever since "Rushmore".

News & Media

The New Yorker

He has known better days.

News & Media

The New York Times

And he has known that.

For he has known genius.

News & Media

The New Yorker
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Expert writing Tips

Best practice

Vary your vocabulary to prevent repetition. While "has known" is correct, consider alternatives like "is familiar with" or "has been aware of" to add nuance and maintain reader engagement.

Common error

Avoid using "has known" when referring to a completed action in the past that has no relevance to the present. For example, instead of "He has known the answer yesterday", use "He knew the answer yesterday".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "has known" functions as a present perfect verb phrase. It indicates an action (knowing) that started in the past and continues to have relevance in the present. Ludwig AI confirms its correct usage, as shown in the provided examples.

Expression frequency: Very common

Frequent in

News & Media

43%

Science

27%

Formal & Business

10%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "has known" is a versatile and grammatically sound present perfect verb phrase, as validated by Ludwig AI. Its primary function is to indicate a state of knowledge or familiarity that began in the past and continues to the present. With a neutral register, it fits various contexts, including formal and informal settings. While "has known" appears most frequently in "News & Media", it also finds common usage in "Science". Remember to avoid misusing it with completed past actions, and consider alternatives like "is familiar with" for varied writing. By paying attention to these guidelines, you can effectively incorporate "has known" into your writing.

FAQs

How do I use "has known" correctly in a sentence?

Use "has known" to describe a state of knowing or familiarity that started in the past and continues to the present. For instance, "She "has known" him for many years".

What are some alternatives to the phrase "has known"?

Depending on the context, you could use alternatives such as "is familiar with", "has been aware of", or "has experienced".

Is "has known" formal or informal?

"Has known" is generally considered neutral and can be used in both formal and informal contexts. The formality depends more on the surrounding vocabulary and sentence structure.

What's the difference between "has known" and "knew"?

"Has known" implies the knowing continues to the present, while "knew" refers to a state of knowing that existed only in the past and may or may not continue. For example, "She "has known" him for years" versus "She knew him in college".

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: