I have known

USAGE SUMMARY

"I have known" is correct and usable in written English.
It is usually used when referring to something that has been known for a period of time. For example: "I have known her since we were children."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

I have known a man.

The New Yorker

I have known speed.

The New York Times - Sports

Should I have known?

The Guardian - Opinion

I have known for a long time.

The New York Times

I have known Roberta a long time.

Independent

'Bye, great dogs I have known.

The New Yorker

Human-verified similar examples from authoritative sources

Similar Expressions

6 human-written examples

"I've known warriors.

The New York Times

I've known subtler juxtapositions.

The New Yorker

I've known you forever.

The New Yorker

I've known it all along".

Independent

I've known a few of them.

The New York Times

Expert writing Tips

Best practice

When writing, ensure the context clearly indicates the duration and depth of your acquaintance or knowledge. Avoid vagueness to maintain clarity.

Common error

Avoid using "I have known" when referring to something encountered only briefly or recently. This phrase is best suited for situations where familiarity has developed over time.

Linguistic Context

The phrase "I have known" functions as the main verb in a sentence, indicating a state of awareness or familiarity that has persisted over time. As Ludwig AI confirms, it's grammatically correct and commonly used. Examples show it used to describe relationships with people, places, or ideas.

Expression frequency: Very common

Frequent in

News & Media

78%

Science

12%

Formal & Business

5%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "I have known" is a grammatically sound and frequently used phrase to express long-term familiarity or awareness. Ludwig AI confirms its correctness and usability. It is most commonly found in news and media, science, and formal business contexts. When writing, using "I have known" effectively requires understanding its emphasis on duration and depth of familiarity. Common errors involve using it for brief encounters. Consider alternatives like "I am familiar with" or "I am aware of" when describing less established knowledge. The high frequency of "I have known" and its presence across authoritative sources like The New York Times and The Guardian underscore its importance in effective communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I am acquainted with

This alternative suggests a level of familiarity but might imply a less deep or prolonged relationship than "I have known".

I am familiar with

This option indicates awareness or understanding, not necessarily implying a personal connection or long-term relationship as "I have known" does.

I've been aware of

Focuses on awareness of something, rather than a personal connection or experience, differing slightly from "I have known".

I have experience with

This suggests practical involvement or exposure, which may or may not be implied by "I have known".

I recognize

Implies acknowledgement or awareness, potentially lacking the depth of familiarity suggested by "I have known".

I'm conversant with

Suggests knowledge and ability to discuss something, not necessarily implying a personal or long-term association as "I have known" does.

I've encountered

This alternative focuses on having met or experienced something, whereas "I have known" indicates a continued or deeper familiarity.

I've dealt with

Suggests handling or managing something, which differs from the familiarity implied by "I have known".

I'm conscious of

Emphasizes awareness or realization, but does not necessarily imply familiarity or long-term knowledge, unlike "I have known".

I'm mindful of

Highlights being aware and attentive to something, differing from the familiarity or personal connection implied by "I have known".

FAQs

How can I use "I have known" in a sentence?

Use "I have known" to indicate familiarity with a person, place, or thing over a period. For example, "I have known him for years" or "I have known this city since I was a child".

What's the difference between "I have known" and "I know"?

"I know" implies a current state of awareness, while "I have known" suggests knowledge gained and maintained over time. Using "I know" is suitable for immediate facts; "I have known" highlights a history of awareness.

What can I say instead of "I have known" to indicate less familiarity?

If you want to express less familiarity, consider alternatives like "I am aware of" or "I am familiar with", which imply some knowledge without suggesting a long-term relationship.

Is "I've known" the same as "I have known"?

Yes, "I've known" is a contraction of "I have known" and carries the same meaning. Both forms are grammatically correct and can be used interchangeably.