i'm certainly sure.

USAGE SUMMARY

"I'm certainly sure" is correct and usable in written English.
It can be used whenever you are expressing a sentiment of assurance or certainty. For example: "I'm certainy sure that I will be able to finish this project on time."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

I have my doubts – and I'm certainly sure that if Ronan Murphy's redacted file has any information that might incriminate Dot then it'll stay safely hidden under the black ink.

The Guardian - TV & Radio

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

It had a BBC adaptation, a couple of mountings in London and maybe some in America (I'm not even sure) -- it certainly wasn't well known in America.

Huffington Post

"I'm going to certainly make sure that people understand that when there's risky business, there's going to be regulation".

Huffington Post

"And I'm sure it certainly will be.

The Guardian - Sport

This book was certainly different but I'm not sure I liked that.

The Guardian

"While there are certainly bigger M.M.O.G.s, I'm not sure there were ever better games," he said.

The New Yorker

"I don't have confidence in the government to solve this, and I'm certainly not sure I deserve to share the blame for this".

The Guardian

But while it's certainly joy, I'm not sure we know enough to call this laughter.

The Guardian

Now, it's not to everyone's taste, I'm sure, but it certainly got us.

Independent

We both certainly knew; I'm not sure how, but there was no question.

Independent

Their children are certainly deprived, but I'm not sure there will be any long-lasting negative effects from this.

The New York Times

Expert writing Tips

Best practice

Use "I'm certainly sure" when you want to emphasize your confidence in a statement, adding an extra layer of assurance. However, be mindful of potential redundancy; in many cases, "I'm sure" or "I'm certainly" will suffice.

Common error

Avoid using "I'm certainly sure" in contexts where a more nuanced or understated expression of confidence is appropriate. Overusing it can make your statements sound repetitive or even insincere.

Linguistic Context

The phrase "I'm certainly sure" primarily functions as an assertion of certainty. It's a way to emphasize confidence in a statement, as Ludwig AI confirms its correctness and usability. The examples show the phrase used in contexts where the speaker wants to convey strong assurance.

Expression frequency: Rare

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "I'm certainly sure" is a grammatically correct phrase used to assert certainty, as validated by Ludwig AI. While somewhat redundant, it adds emphasis when expressing strong confidence. It’s most commonly found in news media and should be used judiciously to avoid sounding repetitive. Consider alternatives like "I'm absolutely certain" or simply "I'm sure" to achieve a similar effect with potentially greater conciseness.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

i'm absolutely certain

Replaces "certainly sure" with "absolutely certain", emphasizing a stronger degree of confidence.

i'm completely sure

Substitutes "certainly sure" with "completely sure", conveying total confidence.

i'm definitely sure

Replaces "certainly" with "definitely", indicating a firm belief.

i'm very sure

Emphasizes the degree of sureness using "very".

i'm positive

Replaces the whole phrase with "I'm positive", a more concise expression of certainty.

i'm quite sure

Uses "quite sure" to soften the certainty slightly while maintaining assurance.

i'm fairly sure

Replaces "certainly" with "fairly", indicating a reasonable level of confidence, though slightly less strong.

i have no doubt

Expresses certainty by stating the absence of doubt.

i can assure you

Shifts the focus to assuring the listener, implying strong confidence in the statement.

i'm certain

Shortens the phrase to "I'm certain", removing redundancy while maintaining a strong assertion.

FAQs

Is "I'm certainly sure" redundant?

Yes, to some extent. The word "certainly" already implies sureness, so "I'm sure" or "I'm certain" often suffices. However, the added emphasis can be appropriate when you want to convey a higher level of confidence.

What are some alternatives to "I'm certainly sure"?

Consider using "I'm absolutely certain", "I'm completely sure", or simply "I'm sure" depending on the context and desired level of emphasis.

When is it appropriate to use "I'm certainly sure"?

Use "I'm certainly sure" when you want to eliminate any doubt about your conviction or when reassuring someone who is skeptical. It is most effective when used sparingly.

How does "I'm certainly sure" compare to "I'm fairly sure"?

"I'm certainly sure" expresses a strong conviction, while "I'm fairly sure" indicates a more moderate level of confidence. The choice depends on the degree of certainty you want to convey.