he is sure

USAGE SUMMARY

"he is sure" is correct and usable in written English.
You can use it to express certainty or confidence in a specific situation. For example: "He is sure that the project will be successful."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

55 human-written examples

He is sure about that.

The New Yorker

He is sure of that.

The New York Times - Sports

He is sure of one thing.

The New York Times

He is sure of that much.

The New York Times - Sports

He is sure of a rapturous reception.

The Guardian - Sport

That, he is sure, has implications.

The Guardian - Lifestyle

He is sure that others were involved.

The Guardian

But he is sure it will not involve another restaurant.

The New York Times

But he is sure enough of himself to be untroubled.

Independent

He is sure the assailants were from the MQM.

The Economist

But he will be blamed anyway, he is sure.

The New York Times

Expert writing Tips

Best practice

Use "he is sure" when you want to convey a sense of confidence or certainty about a particular fact or outcome. Ensure the context clearly supports the reason for his confidence to make the statement more impactful.

Common error

Avoid using "he is sure" when the context suggests doubt or speculation. Using it ironically can be confusing; clarify your intent to prevent misinterpretation.

Linguistic Context

The phrase "he is sure" primarily functions as an assertion of certainty. Ludwig examples showcase its use in conveying confidence about facts, outcomes, or beliefs. Ludwig AI confirms that it is grammatically correct and commonly used.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Formal & Business

0%

Science

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "he is sure" is a grammatically sound and frequently used phrase for expressing certainty or confidence. Ludwig AI confirms its validity, and Ludwig examples from news and media sources demonstrate its wide applicability. While versatile, it’s important to use it judiciously in contexts where confidence is warranted and to avoid misinterpretations when irony is intended. Alternatives like "he is certain" or "he is convinced" can add nuance depending on the desired level of formality or emphasis.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

he is certain

Synonymous; replaces 'sure' with a more formal term conveying absolute conviction.

he is convinced

Indicates a state of being persuaded, emphasizing the process leading to certainty.

he is positive

Offers a slightly less formal alternative to 'certain', still expressing strong assurance.

he has no doubt

Expresses certainty by negating doubt, providing a different structural emphasis.

he is confident

Focuses on his feeling of self-assurance regarding a particular outcome or belief.

he firmly believes

Highlights the strength and conviction behind his belief.

he is of the opinion

Presents his certainty as a considered judgment or assessment.

he ascertains

implies he has carried out investigation to confirm something

he guarantees

Indicates a firm promise or assurance of a specific outcome, stronger than simple certainty.

he is under the impression

Indicates a belief based on incomplete evidence or assumptions, weaker than certainty.

FAQs

How can I rephrase "he is sure" to sound more formal?

For a more formal tone, you could use alternatives like "he is certain", "he is convinced", or "he has no doubt".

What's the difference between saying "he is sure" and "he is confident"?

"He is sure" emphasizes his belief in the truth of something, while "he is confident" focuses on his self-assurance in his ability to achieve something. Depending on the context one may be more suitable than the other.

Is it ever incorrect to use "he is sure"?

It's generally correct, but avoid using "he is sure" if there's clear evidence suggesting the contrary. Overstating certainty can undermine your credibility.

What are some less common alternatives to "he is sure"?

Alternatives like "he is positive" or "he firmly believes" can add variety to your writing, though they might carry slightly different connotations.