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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I am certain about that

Grammar usage guide and real-world examples

USAGE SUMMARY

The sentence "I am certain about that" is correct and usable in written English.
You can use it when you are expressing certainty or conviction about something. For example: "I think it will rain this weekend, but I'm not sure. I am certain about that, however."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

More talks are expected soon, with the player saying: "I would like to stay here a long, long time, I am certain about that.

News & Media

Independent

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

"I had the pace to be on pole, I'm certain about that," said Hamilton, who will now start in ninth.

News & Media

BBC

Mr. Obama said: "What I'm certain about is that people are disenchanted with a highly ideological Republican Party that believes tax cuts are the answer to every problem, and lack of regulation and oversight is always going to generate economic growth, and unilateral intervention around the world is the best approach to foreign policy.

News & Media

The New York Times

"At the moment, the only thing I'm certain about is that I'll vote for Trump and hold my nose and pray," Michael Epstein, a board member of the RJC, told the Guardian, adding that he intended to put his energies into helping GOP congressional candidates.

News & Media

The Guardian

"What I'm certain about is that he did not make a firm commitment yesterday," Sessions told CBS. "But he is absolutely committed to the first thing that has to be done, and that's end the lawlessness to protect Americans from danger.

News & Media

The Guardian

"One thing I'm certain about is that there will be less full-time equivalent staff working for KCC into the future".

News & Media

BBC

What I am certain about, though, is that he has a massive England future.

News & Media

BBC

"I'm certain about that.

News & Media

The New York Times

While I continue to learn, there is one thing that I am certain about.

News & Media

Huffington Post

All I was certain about was that Mike Daisey was just as confused and unsure as the rest of us.

News & Media

Huffington Post

"The only thing I was certain about was that I could lure any man I wanted into my bed," she writes.

Show more...

Expert writing Tips

Best practice

To enhance clarity, follow the phrase with a clear explanation of what "that" refers to, especially in complex discussions.

Common error

While acceptable, avoid overuse in highly formal or academic writing. Opt for more nuanced expressions of certainty like "it is evident" or "the evidence suggests" to maintain a sophisticated tone.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

79%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I am certain about that" functions as an expression of strong affirmation or conviction. It asserts a firm belief in the truth or validity of a preceding statement or situation. As Ludwig AI confirms, it's a correct and usable expression.

Expression frequency: Common

Frequent in

News & Media

55%

Science

15%

Huffington Post

10%

Less common in

Formal & Business

5%

Wiki

5%

Science & Research

5%

Ludwig's WRAP-UP

The phrase "I am certain about that" is a common and grammatically sound way to express strong conviction or belief. As Ludwig AI points out, it’s suitable for many contexts but might need adjustment for highly formal writing where alternatives like "it is evident" may be more appropriate. The analysis of usage patterns shows it frequently appears in news and media sources. When writing, remember that while emphatic, clarity is key; ensuring the "that" is clearly referenced will enhance understanding. For scenarios where "I am certain about that" feels too direct, consider alternatives such as "I am sure of that" or "I have no doubt about that".

FAQs

How can I use "I am certain about that" in a sentence?

Use "I am certain about that" to express a strong belief or conviction. For example, "I believe the project will succeed, and "I am certain about that"."

What are some alternatives to "I am certain about that"?

You can use alternatives like "I am sure of that", "I am positive about that", or "I have no doubt about that" depending on the context.

Is "I am certain about that" formal or informal?

"I am certain about that" is generally considered neutral and can be used in both formal and informal contexts, though more formal alternatives may be preferred in academic or professional writing.

What's the difference between "I am certain about that" and "I think so"?

"I am certain about that" expresses a strong conviction, while "I think so" indicates a belief but with a degree of uncertainty. The former conveys more assurance than the latter.

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Source & Trust

79%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: