Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
confirm for sure
Grammar usage guide and real-world examplesUSAGE SUMMARY
"confirm for sure" is a correct and usable phrase in written English.
You can use it when you need to ensure something is true before taking any action. For example, "Please confirm for sure that the meeting is scheduled for Friday before I make travel arrangements."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
confirm with certainty
verify definitively
ascertain beyond doubt
establish conclusively
substantiate without question
attest unequivocally
validate absolutely
confirm for certain
prove for sure
assert for sure
ascertain for sure
are for sure
am for sure
confirm of course
decide for sure
acknowledge for sure
confirm definitely
confirmation for sure
definite confirmation
absolutely confirmed
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
3 human-written examples
Only Durov could confirm for sure that the messages have gone from his end too.
News & Media
That's a preliminary result that the firm will confirm for sure soon, but, if the number stays as it is or is higher, that will be enough to enable the sale to proceed.
News & Media
The data therefore did not allow us to confirm for sure that the participant was employed, nor with which employer he/she was employed (if several employers were reported), at the exact date of enrollment in the study.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
You turned it over, as today's acrostic quote reveals, and waited for a plastic polyhedron to float up and land one of its faces containing prewritten messages against the clear "eye". If the answer wasn't satisfactory, you could shake it and try again until the answer confirmed for sure that the boy in your algebra class "like liked" you.
News & Media
Tests looking for elevated white blood cell counts can also sometimes be used to suggest the presence of mono, but won't actually confirm mononucleosis for sure.
Wiki
"We've had at least one confirmed tornado, for sure," he said, adding no one was hurt or injured.
News & Media
Crockett says she relied on past research to identify the point at which absorption of the drugs was highest, but she couldn't confirm neurotransmitter levels for sure without a more invasive test, such as a PET scan.
Science & Research
There are sure to be more jokes on the way with Stan Morrison also confirmed for the event.
News & Media
We were pretty sure that the second referee was, in fact, none other than Daryl Bem himself, a suspicion that the good professor kindly confirmed for us.
News & Media
The Department for Education later confirmed that Sure Start would remain "universal", that is, available to all.
News & Media
Qualitative research is iterative versus linear and, thus, strategies for verification ("checking, confirming, making sure and being certain" [ 41]) were built into all steps of the research process and not restricted to post-hoc evaluation strategies [ 41].
Science
Expert writing Tips
Best practice
Use "confirm for sure" when you want to emphasize the importance of verifying information before acting on it. For example, "Please "confirm for sure" that the data is accurate before submitting the report."
Common error
Avoid using "confirm for sure" when the context already implies certainty. Saying "Please confirm the details" is often sufficient. The addition of "for sure" is optional and may clutter the sentence.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "confirm for sure" functions as a request for verification, used to emphasize the importance of obtaining definitive confirmation. According to Ludwig, the phrase is grammatically correct and understandable in written English, which aligns with its function of seeking clear affirmation.
Frequent in
News & Media
33.33%
Science
33.33%
Wiki
33.33%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "confirm for sure" is a grammatically sound phrase used to emphasize the need for verification. Ludwig AI confirms its acceptability in written English, primarily in neutral to informal contexts. While "confirm" alone often suffices, adding "for sure" underscores the importance of absolute certainty. Its frequency is relatively rare, but its purpose is clear: to ensure accuracy and prevent errors by explicitly seeking definitive confirmation before taking action. Keep in mind the slight redundancy the phrase may cause in some instances.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
confirm with certainty
Replaces "for sure" with "with certainty", emphasizing the definiteness of the confirmation.
verify definitively
Substitutes both "confirm" and "for sure" with stronger synonyms, highlighting the conclusive nature of the verification.
ascertain beyond doubt
Replaces "confirm" with "ascertain" and "for sure" with "beyond doubt", indicating a removal of any uncertainty.
establish conclusively
Changes "confirm" to "establish" and "for sure" to "conclusively", focusing on the act of making something undeniable.
substantiate without question
Emphasizes the act of providing evidence that leaves no room for doubt.
attest unequivocally
Replaces with more formal language, stressing the unambiguous nature of the confirmation.
validate absolutely
Focuses on the validation aspect with an absolute sense of certainty.
corroborate decisively
Highlights the decisive nature of the corroboration process.
determine with assurance
Emphasizes the confident and certain determination of something.
prove undeniably
Shifts the focus to proving something in a way that cannot be denied.
FAQs
How can I use "confirm for sure" in a sentence?
You can use "confirm for sure" to emphasize the need for verification. For example, "Before we proceed, can you "confirm for sure" that all the documents are signed?"
What is a good alternative to "confirm for sure"?
Alternatives include "confirm with certainty", "verify definitively", or "ascertain beyond doubt", depending on the context and desired level of formality.
Is it redundant to say "confirm for sure"?
It can be, if the context already implies certainty. In many cases, simply saying "confirm" is sufficient, but adding "for sure" emphasizes the importance of absolute verification.
What's the difference between "confirm" and "confirm for sure"?
"Confirm" means to establish the truth or correctness of something. "Confirm for sure" adds emphasis, indicating that you want to be absolutely certain and leave no room for doubt.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested