he probably knows

USAGE SUMMARY

The phrase "he probably knows" is correct and usable in written English.
It can be used when you want to express a belief or assumption about someone's knowledge or awareness of a situation. Example: "Given his experience in the field, he probably knows how to handle this issue effectively."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Of course, Jobs is also the CEO of innovative animation house Pixar –he probably knows a bit about making entertainment pay.

Forbes

He probably knows".

The New York Times - Sports

So he probably knows physics," he said.

The New York Times

But then he probably knows that.

The Economist

But he probably knows that.

The Guardian - Books

Deep down inside, he probably knows better.

The New York Times - Sports

He probably knows exactly what he's going to do".

The New York Times - Magazine

If he can't help, he probably knows someone who can.

The New York Times

He probably knows why he missed the circle completely.

Harvard Business Review

He made a big mistake and he probably knows that.

The Guardian - Lifestyle

He probably knows a couple of junior people in No10.

The Guardian

Expert writing Tips

Best practice

Use "he probably knows" when you want to convey a belief or assumption about someone's knowledge without stating it as a definite fact. It's useful for expressing a reasoned guess based on available information.

Common error

Avoid using "he probably knows" when you have concrete evidence or direct confirmation of their knowledge. In such cases, a more definitive statement is appropriate, as "he knows" is more impactful and precise.

Linguistic Context

The phrase "he probably knows" functions as an expression of belief or assumption. It suggests the speaker believes that someone possesses specific knowledge, but without absolute certainty. Ludwig's examples demonstrate this usage across various contexts.

Expression frequency: Very common

Frequent in

News & Media

89%

Formal & Business

5%

Wiki

2%

Less common in

Science

2%

Encyclopedias

1%

Reference

1%

Ludwig's WRAP-UP

In summary, the phrase "he probably knows" is a grammatically sound and very common expression used to indicate a belief or assumption about someone's knowledge. As Ludwig AI pointed out, the phrase functions to convey an inference rather than a definitive fact, maintaining a neutral register suitable for various contexts, especially in news and media. By understanding its function, purpose, and common errors, writers can effectively use this phrase to add nuance and precision to their communication.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

he likely knows

Replaces "probably" with "likely", a synonym that suggests a high probability.

he most likely knows

Adds emphasis using "most likely" to strengthen the assumption.

he presumably knows

Uses "presumably" to indicate the knowledge is being inferred based on available evidence.

he undoubtedly knows

Employs "undoubtedly" to express a very strong belief in his knowledge.

he is likely aware

Replaces "knows" with "is aware", broadening the scope to include general awareness rather than specific knowledge.

he's probably aware

A contracted form using "he's" to replace "he is" maintaining informality and "aware" instead of "knows".

i imagine he knows

Shifts the sentence to first-person perspective, explicitly stating the speaker's imagination or assumption.

i assume he knows

Similar to imagining, but uses "assume" to convey a sense of taking something for granted without proof.

it is my guess that he knows

More explicitly states the speaker's speculation or prediction, making the assumption clear.

one can assume he is aware

Uses a more formal and distanced phrasing with "one can assume" instead of a direct personal statement.

FAQs

How can I rephrase "he probably knows" to sound more formal?

For a more formal tone, consider using phrases like "he presumably knows" or "it is likely that he is aware". These options convey a similar meaning with a heightened level of formality.

Is it correct to say "he probably know" instead of "he probably knows"?

No, "he probably know" is grammatically incorrect. The correct form is "he probably knows", as the verb "knows" must agree with the singular subject "he".

What's a more casual alternative to "he probably knows"?

A more casual alternative would be "I reckon he knows". This phrasing is less formal and suitable for informal conversations.

How does "he probably knows" differ from "he certainly knows"?

"He probably knows" indicates an assumption or belief, while "he certainly knows" expresses a high degree of confidence or certainty about his knowledge. The latter suggests you have strong evidence or reason to believe he possesses the information.