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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
for sure
Grammar usage guide and real-world examplesUSAGE SUMMARY
"for sure" is a correct and usable phrase in written English.
You can use it to express certainty, agreement, or reassurance in a sentence. For example, "I'm going to come to your party, for sure."
✓ Grammatically correct
News & Media
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
60 human-written examples
For sure, for sure.
News & Media
"For sure".
News & Media
Who knows for sure?
News & Media
Welcome news, for sure.
News & Media
Yes, for sure.
News & Media
Not for sure.
News & Media
Intimidating, for sure.
News & Media
Zinfandel, for sure.
News & Media
"Huge win, for sure".
News & Media
Rice Krispies, for sure.
News & Media
Fresh, for sure.
News & Media
Expert writing Tips
Best practice
Use "for sure" to express agreement, certainty, or confirmation in a casual context. It adds a conversational tone to your writing.
Common error
Avoid using "for sure" in highly formal or academic writing. Opt for alternatives like "certainly" or "undoubtedly" to maintain a more professional tone.
Source & Trust
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for sure" functions as an adverbial phrase or interjection, modifying a verb or expressing a sentiment. Ludwig AI indicates it's usable for expressing certainty, agreement, or reassurance. The examples show it confirming statements or indicating strong agreement.
Frequent in
News & Media
85%
Formal & Business
5%
Science
5%
Less common in
Academia
1%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
In summary, "for sure" is a common and correct phrase used to express certainty, agreement, or affirmation, as noted by Ludwig AI. It is primarily employed in informal contexts, such as conversations and casual writing, but should be used sparingly in formal academic or professional settings. The examples from Ludwig illustrate its prevalence in news and media sources, and its versatility in conveying a confident and affirmative stance. For more formal situations, alternatives like "definitely" or "certainly" are recommended.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
definitely
A single word expressing strong affirmation or certainty; more concise.
certainly
Similar to "definitely" but can also imply inevitability.
without a doubt
Emphasizes the lack of uncertainty; more emphatic.
absolutely
Expresses complete agreement or affirmation; often used enthusiastically.
undoubtedly
Similar to "without a doubt", but sounds more formal.
assuredly
A more formal and somewhat archaic way of expressing certainty.
of course
Implies that something is obvious or expected.
indeed
Confirms a previous statement; often used in response.
positively
Emphasizes the certainty of something.
beyond question
Highlights that something cannot be questioned or doubted.
FAQs
How can I use "for sure" in a sentence?
What can I say instead of "for sure"?
You can use alternatives like "definitely", "certainly", or "absolutely" depending on the context.
Is "for sure" formal or informal?
"For sure" is generally considered an informal expression. In more formal settings, it's better to use alternatives like "certainly" or "undoubtedly".
What is the difference between "for sure" and "of course"?
"For sure" expresses agreement or certainty, while "of course" implies something is obvious or expected. While both can be used to agree, "of course" has a stronger implication of obviousness.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested