he would know

USAGE SUMMARY

The sentence "he would know" is grammatically correct and can be used in written English.
It is commonly used to express the idea that the subject has knowledge or understanding about something. Example: "She asked him about the history of the town, and he confidently responded, 'He would know, he's lived here his whole life.'".

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

And he would know.

The New York Times

He would know.

The New York Times

Then, he said, he would know more.

The New York Times

Not that he would know.

The Guardian - Film

He would know the effects of those changes.

Stanford University

"He would know when things had changed in cyberspace.

Stanford University

He would know what he was signing, yes.

Cornell University

He would know, given Duke's loss to Lehigh last season.

The New York Times - Sports

Human-verified similar examples from authoritative sources

Similar Expressions

3 human-written examples

Do you think he'd know?

The New York Times

Well, he'd know.

The Guardian

He must have thought he'd know by now.

Independent

Expert writing Tips

Best practice

Use "he would know" when you want to express that someone possesses specific knowledge or understanding based on their experience, position, or expertise.

Common error

Avoid using "he would know" when speculating about someone's potential future knowledge without any solid basis. Ensure there's a reasonable connection to their background or current situation.

Linguistic Context

The phrase "he would know" functions as a modal construction expressing a conditional or potential knowledge state. It suggests that someone possesses or would possess specific information given certain circumstances. As shown by Ludwig, it is used in a variety of contexts to convey this meaning.

Expression frequency: Very common

Frequent in

News & Media

65%

Academia

19%

Science

16%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "he would know" is a grammatically correct and common way to express someone's likely knowledge or understanding, as confirmed by Ludwig. Its usage spans various contexts, primarily appearing in News & Media, Academia, and Science. It's versatile enough for neutral settings, and related phrases like "he'd understand" or "he would be aware" can offer subtle shifts in meaning. When using "he would know", ensure the context logically supports the person's presumed knowledge, avoiding speculative applications.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

he'd be aware

Contraction used; emphasizes awareness rather than certainty of knowledge.

he'd understand

Contraction used; focuses on comprehension rather than just knowing facts.

he would be aware

Emphasis is on being conscious or informed.

he would understand that

More specific, indicating comprehension of a particular point.

he would realize

Focuses on the process of coming to a knowledge or understanding.

he would be familiar with

Suggests prior experience or exposure leading to knowledge.

he'd be cognizant

Contraction used; emphasizes a formal awareness of the situation.

he would appreciate

Implies knowledge derived from experience or understanding of value.

he'd be informed

Contraction used; suggests receiving information from an external source.

he would gather

Focuses on collecting information to form an understanding.

FAQs

How can I use "he would know" in a sentence?

You can use "he would know" to indicate that someone possesses specific knowledge due to their experience or expertise. For example, "Ask him about the engine; "he would know", he's a mechanic."

What's a more formal alternative to "he would know"?

In a more formal context, you could use phrases like "he would be aware", "he would understand", or "he would be cognizant of" depending on the specific shade of meaning you intend to convey.

Which is correct, "he would know" or "he will know"?

"He would know" is generally used to express a conditional or habitual action, while "he will know" expresses a future certainty. The choice depends on the intended meaning and context.

Is there a difference between "he would know" and "he'd know"?

"He'd know" is a contraction of "he would know". They are semantically identical and interchangeable, with "he'd know" being slightly less formal.