would have known

USAGE SUMMARY

"would have known" is a phrase used in written English and is both grammatical and commonly used.
You can use it when you are referring to something that was not known in the past or when you are reflecting on something that should have been known. For example: "If I had read the instructions, I would have known to insert the batteries in the correct direction."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

55 human-written examples

Who would have known?

The New York Times

No one would have known.

The New York Times - Arts

Joyce would have known the type.

The New Yorker

Not that most Turks would have known.

The Economist

Elli would have known what they were.

The New Yorker

"He would have known.

The New York Times - Arts

'My son would have known.

The Guardian - Lifestyle

Nobody would have known why.

The Guardian - Lifestyle

I never would have known".

The New York Times

She surely would have known.

The New York Times - Magazine

Bikeman, he said, would have known that.

The New York Times

Expert writing Tips

Best practice

When using "would have known", ensure that the context clearly indicates the condition or situation that would have led to the knowledge.

Common error

Avoid using "would have known" when a simple past tense form like "knew" is more appropriate for stating a fact rather than a hypothetical situation.

Linguistic Context

The phrase "would have known" functions as a conditional perfect construction, expressing a hypothetical situation in the past where someone possessed knowledge they did not actually have. Ludwig AI shows many examples where this construction is used to indicate a missed opportunity or a different outcome that could have occurred.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "would have known" is a versatile conditional perfect construction used to express hypothetical past knowledge. As evidenced by Ludwig AI, it is commonly found in news and media contexts and functions to speculate about past situations where different circumstances could have led to a different outcome. When using this phrase, remember to ensure that the context clearly establishes the conditional nature of the statement and to use simpler tenses when stating direct facts.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

would have recognized

A synonym focusing on the action of identifying something/somebody specific.

would have recognized

Focuses on the act of identifying something familiar, changing the emphasis from general knowledge to specific recognition.

would have understood

Shifts the focus to comprehension or grasping the meaning, rather than simply knowing a fact.

would have realised

Similar to 'would have realized', implies a moment of understanding.

would have realized

Emphasizes the process of becoming aware of something, suggesting a change in perception.

would have learned

Highlights the acquisition of knowledge through experience or study, differing from innate awareness.

would have discovered

Implies finding out something previously unknown, focusing on the act of uncovering information.

would have imagined

Indicates that someone could have conceived or predicted something. Changes the meaning from being in the know to have guessed about the matter

would have conceived

This suggests the individual could have formed an idea or concept.

would have remembered

Highlights the act of recalling information from memory, adding a temporal element.

FAQs

How is "would have known" used in a sentence?

The phrase "would have known" indicates a past conditional situation. For example, "If I had studied harder, I "would have known" the answer."

What does "would have known" imply about a situation?

It implies that someone did not know something, but they potentially could have known it under different circumstances. This often involves a sense of regret or a hypothetical scenario.

Can "would have known" be replaced with a simpler phrase?

In some contexts, you can use "knew" or "had known". However, "would have known" specifically refers to a hypothetical past, whereas "knew" simply states a fact.

What is the difference between "would have known" and "should have known"?

"Would have known" describes a hypothetical scenario, while "should have known" expresses an obligation or expectation. For example, "He "would have known" the truth if he had asked" (hypothetical), but "He "should have known" better" (obligation).