he was certain that

USAGE SUMMARY

The phrase 'he was certain that' is correct and usable in written English.
It is often used when conveying a strong sense of confidence in a particular course of action or belief. For example, "He was certain that success was within reach and worked tirelessly to achieve it."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

He was certain that "the audience doesn't know the difference".

The New Yorker

He was certain that the audience already existed.

The New Yorker

But he was certain that these actions were constitutional.

The New York Times

He was certain that his role in "O.G".

The New Yorker

But he was certain that it was painful.

The New York Times - Sports

He told me he was certain that the two were related.

Stanford University

And he said he was certain that one day Microsoft would have a woman CEO.

Harvard University

He was certain that if he got a fair shot, he could stick this time.

The New York Times - Sports

But he was certain that Ms. Matosantos had given them the right guidance.

The New York Times

McDaniels said he was certain that Tebow was filling those conversations with questions.

The New York Times - Sports

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

He is certain that Copenhagen is the end of negotiations.

The Economist

Expert writing Tips

Best practice

Use "he was certain that" to express a character's strong conviction or belief, especially when it influences their actions or decisions. This phrase adds depth to character development and plot progression.

Common error

Avoid repetitive use of "he was certain that" in close proximity. Vary your sentence structure and vocabulary by using synonyms like "he was convinced that" or "he firmly believed that" to maintain reader engagement.

Linguistic Context

The phrase "he was certain that" functions as a declarative statement expressing a strong belief or conviction. It introduces a clause that the subject firmly believes to be true. Ludwig AI confirms its correctness.

Expression frequency: Very common

Frequent in

News & Media

68%

Academia

15%

Science

17%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "he was certain that" is a versatile phrase used to express strong conviction or belief. Ludwig AI confirms it as grammatically correct and suitable for various contexts, particularly news and media, academic writing, and science. While highly common, it's advisable to vary your language by using synonyms like "he was convinced that" or "he firmly believed that" to avoid repetition and maintain writing quality.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

he felt assured that

Replaces "certain" with "assured", slightly softening the tone while maintaining the sense of confidence.

he had no doubt that

Emphasizes the absence of doubt, conveying a strong conviction.

he was convinced that

Substitutes "certain" with "convinced", indicating a firm belief based on evidence or reasoning.

he firmly believed that

Replaces "was certain" with "firmly believed", adding emphasis to the strength of the belief.

he was sure that

Uses "sure" as a more informal synonym for "certain".

he knew for a fact that

Indicates knowledge based on concrete evidence, rather than just a belief.

he was positive that

Employs "positive" as a synonym for "certain", conveying a strong, affirmative belief.

he held the conviction that

Replaces "was certain" with "held the conviction", suggesting a deeply held and unwavering belief.

he was of the firm opinion that

Presents the certainty as a formal opinion.

he entertained no reservations that

Highlights the complete absence of any doubts or hesitations.

FAQs

How can I use "he was certain that" in a sentence?

Use "he was certain that" to indicate a strong belief or conviction. For example, "He was certain that his plan would succeed despite the challenges ahead."

What are some alternatives to "he was certain that"?

You can use alternatives like "he was convinced that", "he firmly believed that", or "he had no doubt that" depending on the context.

Is there a difference between "he was certain that" and "he was sure that"?

While similar, "he was certain that" often implies a slightly stronger level of conviction than "he was sure that". "Certain" suggests a more reasoned or evidence-based belief, while "sure" can be more intuitive.

When is it appropriate to use "he was certain that" in writing?

It's appropriate to use "he was certain that" when you want to emphasize a character's or subject's strong belief or conviction about something. Use it to highlight their confidence or resolve.