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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
i assure
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I assure" is correct and usable in written English.
It can be used when you want to express confidence or guarantee something to someone. Example: "I assure you that the project will be completed on time."
✓ 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
Fine, I assure her.
News & Media
Nothing, I assure you.
News & Media
I assure you".
News & Media
— Yes, I assure you.
News & Media
"You?" "Definitely," I assure him.
News & Media
Accidentally, I assure you.
News & Media
It was work, I assure you.
News & Media
I assure him that I am.
News & Media
"I like this one," I assure him.
News & Media
(And I assure you it is).
News & Media
I assure you he will grow accustomed".
News & Media
Expert writing Tips
Best practice
When using "i assure", clearly state the reason for your certainty. Providing context helps the recipient understand the basis of your assurance and increases their confidence in your statement.
Common error
Avoid using "i assure" too frequently in your writing, as it can make you sound repetitive or overly insistent. Instead, vary your language by using synonyms or rephrasing your sentences to convey the same message in a more natural way.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "i assure" is to serve as a performative utterance, where the act of saying it constitutes the act of assuring. It expresses a commitment from the speaker to the listener regarding the truth or reliability of a statement. Ludwig AI shows multiple examples where the phrase is used in different contexts to guarantee or confirm something.
Frequent in
News & Media
85%
Formal & Business
8%
Academia
4%
Less common in
Science
1%
Encyclopedias
1%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "i assure" is a grammatically correct and very common expression used to convey a strong sense of certainty and reassurance. As Ludwig AI confirms, it's used across various contexts, particularly in news and media, to guarantee or confirm information. While versatile, overusing the phrase can sound repetitive. Consider alternatives like "i guarantee you" or "you can rest assured" to maintain a natural tone. When using "i assure", ensure you provide clear context to reinforce your statement's credibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
i guarantee you
Emphasizes a firm promise or warranty.
i can assure you
Adds a sense of capability or ability to guarantee something.
i want to assure you
Highlights the speaker's intention and desire to provide reassurance.
you can rest assured
Shifts the focus to the listener, offering them comfort and certainty.
i give you my word
Implies a personal commitment and trustworthiness.
i promise you
A direct and straightforward promise.
i can confirm
Offers verification or confirmation of a fact or statement.
i can vouch for
Suggests personal experience and confidence in something's reliability.
have no doubt
Emphasizes certainty and lack of uncertainty.
i attest to
A formal declaration or confirmation of truth.
FAQs
How to use "i assure" in a sentence?
You can use "i assure" to express confidence or guarantee something to someone. For example: "I assure you that the project will be completed on time".
What can I say instead of "i assure"?
You can use alternatives like "i guarantee you", "i promise you", or "you can rest assured" depending on the context.
When is it appropriate to use "i assure"?
It is appropriate to use "i assure" when you want to convey a strong sense of certainty or to reassure someone who may be doubtful or anxious. Be sure you have a valid reason for your certainty.
What's the difference between "i assure" and "i believe"?
"I assure" conveys a stronger sense of certainty and guarantee than "i believe". "I believe" expresses an opinion or conviction, while "i assure" expresses a firm promise or reassurance.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested