are known to

USAGE SUMMARY

"are known to" is a correct phrase that can be used in written English.
You can use it to denote that something is generally known or accepted. For example, "Strawberries are known to contain high levels of Vitamin C."

✓ Grammatically correct

News & Media

Science

Academia

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

And children are known to rebel.

The New York Times

The Chinese are known to be gamblers.

The New York Times - Sports

Gamblers are known to be superstitious.

The New York Times - Sports

Knuckleballers are known to favor controlled environments.

The New York Times - Sports

Only three copies are known to exist.

Independent

Only six are known to have survived.

The New York Times

They are known to irritate".

The New York Times

Canada and Mexico are known to have lots.

The Economist

Both sexes are known to drum.

Cornell University

No copies are known to exist.

Princeton University

(They are known to have egos).

The New York Times - Arts

Expert writing Tips

Best practice

Use "are known to" to introduce facts or widely accepted information, enhancing the credibility of your statements. For instance, "Vitamin C and zinc "are known to" boost the immune system".

Common error

Avoid overusing "are known to" as it can lead to passive voice. Instead, opt for active voice constructions for more direct and engaging writing. For example, instead of "It "is known to" cause...", try "Studies show it causes...".

Linguistic Context

The phrase "are known to" primarily functions as a declarative statement introducing information that is generally accepted or widely recognized. As Ludwig AI highlights, it's used to present established facts.

Expression frequency: Very common

Frequent in

News & Media

30%

Science

30%

Academia

20%

Less common in

Wiki

10%

Formal & Business

5%

Reference

5%

Ludwig's WRAP-UP

In summary, "are known to" is a versatile phrase used to introduce generally accepted information or established facts. According to Ludwig AI, it is grammatically correct and widely used across various contexts. While highly common in News & Media, Science, and Academia, it's important to avoid overusing it in passive voice constructions. Consider using alternatives like "are understood to" or "are recognized to" for nuanced communication. Remember to use this phrase to enhance the credibility of your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

are understood to

Replaces 'known' with 'understood', implying a level of acceptance or tacit agreement.

are recognized to

Substitutes 'known' with 'recognized', suggesting formal acknowledgement or widespread acceptance.

are believed to

Uses 'believed' instead of 'known', indicating that the information may not be definitively proven, but widely accepted as true.

are considered to

Replaces 'known' with 'considered', implying an element of judgment or evaluation.

are reputed to

Uses 'reputed' which suggests that something is commonly said or believed to be the case, but may not be definitively proven.

are thought to

Replaces 'known' with 'thought', which conveys that it is a belief or opinion shared by many, but without strong evidence.

are deemed to

Substitutes 'known' with 'deemed', which suggests a formal judgment or assessment.

are found to

Uses 'found' which implies discovery through investigation or research, often with empirical evidence.

are established to

Replaces 'known' with 'established', conveying a sense of certainty and confirmation.

are documented to

Uses 'documented' to indicate that the information has been recorded and can be verified through records or references.

FAQs

How can I use "are known to" in a sentence?

The phrase "are known to" is used to introduce information that is generally accepted or widely recognized. For example, "Honey and lemon "are known to" soothe a sore throat."

What phrases can I use instead of "are known to"?

Alternatives to "are known to" include phrases like "are understood to", "are recognized to", or "are believed to", depending on the nuance you wish to convey.

Is it better to use active or passive voice with "are known to"?

While "are known to" is grammatically correct, it often leads to passive voice. Using active voice can make your writing more direct and engaging. Consider alternatives like, "Studies show that..." instead of "It "is known to" cause..."."

In what contexts is "are known to" most appropriate?

"Are known to" is suitable in academic, scientific, and formal writing contexts where you need to present established facts or widely accepted knowledge. It's also common in news reports to introduce well-documented information.