have once seen

USAGE SUMMARY

The phrase "have once seen" is correct and usable in written English.
It can be used to indicate that at some point in the past, you saw something, emphasizing that it happened only one time. Example: "I have once seen a shooting star during my camping trip last summer."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

So may the revelation of something profound and important in something you may have once seen as ordinary or routine, or seeing a causal connection between important things and seemingly remote causes".

The New York Times - Science

It's also good to have once seen them throw up at a frat party.

Huffington Post

I have once seen a display like this — not in Copenhagen's Noma but in its Nordic Food Lab, confined to a houseboat moored a few yards outside the kitchen, as if its wild investigations into seaweeds, gorse and fermented sand crabs needed to be quarantined from the proper gastronomic activity in the restaurant.

Los Angeles Times

Human-verified similar examples from authoritative sources

Similar Expressions

57 human-written examples

I had once seen this life that way too.

The New York Times

Like Taylor, he had once seen Price for therapy.

The New Yorker

Adam had once seen a dog named Cecil tear open the stomach of a Teddy bear.

The New Yorker

The Dawoods had once seen the Americans as heroic liberators, but the feeling was short-lived.

The New Yorker

What they had once seen as "harmless creatures", they now perceived as "dangerous animals".

Independent

My children saw me as I had once seen my mom: All parent, no person.

The Washington Post

Before completing the list, though, an image she had once seen flashed through her memory.

The Washington Post

RFK Stadium, which I had once seen bounce with joy, was rotting in raccoon-infested decay.

The Washington Post

Expert writing Tips

Best practice

Use "have once seen" to emphasize a single, specific instance of observation in the past, particularly when contrasting it with current knowledge or expectations.

Common error

Avoid using "have once seen" to describe something you've observed repeatedly. It's best reserved for unique or memorable instances.

Linguistic Context

The phrase "have once seen" functions as part of the verb phrase in a sentence. It specifies an action (seeing) that occurred at a single, undefined point in the past. Ludwig AI confirms that it's grammatically correct and usable.

Expression frequency: Rare

Frequent in

News & Media

100%

Science

0%

Formal & Business

0%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "have once seen" is a grammatically correct way to describe a single, past visual experience. While Ludwig AI indicates it's correct, its frequency is rare and is most commonly found in news and media contexts. When writing, use it to emphasize a specific instance of seeing something, particularly when contrasting it with present knowledge or expectations. Alternatives like "previously observed" or "had seen before" can be used depending on the desired nuance.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

previously observed

Replaces "have once seen" with a more concise and formal expression.

had seen before

Uses a different verb tense and structure to convey a prior visual experience.

once witnessed

Substitutes "seen" with "witnessed", implying a more impactful or significant observation.

recall seeing

Indicates a memory of having seen something at some point in the past.

remember seeing

Expresses a remembrance of a past visual experience.

have previously viewed

Emphasizes the act of viewing something at an earlier time.

at one time saw

Rephrases the original phrase to emphasize a specific point in the past when the event occurred.

have encountered before

Replaces "seen" with "encountered", suggesting a broader range of experiences beyond just visual.

had occasion to see

Indicates that there was an opportunity to see something in the past.

have known

Offers a more general alternative, suitable when direct visual perception isn't critical.

FAQs

What is the difference between "have previously seen" and "have once seen"?

"Have previously seen" indicates a non-specific time in the past, implying it could have happened multiple times. "Have once seen" emphasizes a single, isolated occurrence.

Can I use "have once seen" to describe something that happened recently?

Yes, but it's more common to use it for events that occurred further in the past. For recent events, "I saw" is usually more appropriate.

Is "have once saw" grammatically correct?

No, the correct form is "have once seen". "Seen" is the past participle of the verb "see" and is required after "have".

What can I say instead of "have once seen"?

You can use alternatives like "previously observed", "had seen before", or "once witnessed" depending on the context.