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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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really certain

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "really certain" is correct and usable in written English.
It can be used to emphasize a strong level of certainty about something. Example: "After reviewing all the evidence, I am really certain that we made the right decision."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

41 human-written examples

Only one thing is really certain.

News & Media

The New York Times

I wasn't really certain until I actually bought the restaurant".

News & Media

Independent

Indeed, probably the only really certain verbal suffix is -ce.

Also, I felt certain — somehow really certain — that I was being lied to.

News & Media

The New Yorker

They do, they say, "though we're not really certain what that means any more".

Karl Rove said, "I'm not really certain how intellectually strong she would be".

News & Media

The New York Times
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

19 human-written examples

"We just really liked certain trees.

News & Media

The New York Times

The writer gives several sample programs to really startle certain drivers.

News & Media

The New Yorker

"For me, it is more about trying to really understand certain issues ….

News & Media

The New Yorker

Technology has really enabled certain markets by reducing the friction with which transactions take place.

So we say that it is really not certain that C02 causes global warming.

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Expert writing Tips

Best practice

Use "really certain" to emphasize a strong feeling of conviction without sounding overly formal. It's suitable for conversational and journalistic contexts.

Common error

Avoid using multiple intensifiers (e.g., "really, really certain") as it can weaken your writing and sound less sincere. Choose a single, strong intensifier or rephrase the sentence for greater impact.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "really certain" functions as an intensifier modifying an adjective. It strengthens the degree of certainty being expressed. Ludwig AI's analysis confirms its usability in various contexts.

Expression frequency: Common

Frequent in

News & Media

65%

Academia

15%

Wiki

8%

Less common in

Science

6%

Formal & Business

3%

Encyclopedias

3%

Ludwig's WRAP-UP

In summary, "really certain" is a commonly used and grammatically sound phrase to express a strong degree of confidence. Ludwig AI confirms its correctness and versatility, showcasing its prevalence in news, academic, and general writing. While alternatives like "absolutely certain" exist, "really certain" strikes a balance between informality and clarity. Remember to avoid overusing intensifiers for a more impactful expression. Whether you're discussing scientific findings or personal beliefs, this phrase effectively conveys your conviction.

FAQs

How can I use "really certain" in a sentence?

You can use "really certain" to express a high degree of confidence about something. For example: "I am "really certain" that this is the right decision."

What are some alternatives to "really certain"?

Alternatives include "absolutely certain", "completely sure", or "entirely convinced", depending on the specific nuance you want to convey.

Is it more formal to say "really certain" or "absolutely certain"?

"Absolutely certain" tends to be slightly more formal than "really certain", but both are widely acceptable. The best choice depends on the context and your desired tone.

Which is correct, "I'm really certain" or "I am really certain"?

Both "I'm really certain" and "I am really certain" are grammatically correct. The contracted form "I'm" is more informal and common in everyday speech, while "I am" is slightly more formal.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: