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
I will warn
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I will warn" is a correct and usable phrase in written English.
It can be used as part of a sentence with an object, such as "I will warn you," or with a following action, such as "I will warn the others." Example: "I will warn you about the storm that's coming tomorrow."
✓ Grammatically correct
News & Media
Wiki
Science
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
5 human-written examples
I do not blame you, but I will warn you.
News & Media
Now I will warn you not to go overboard.
News & Media
I will warn you that these people aren't cheap, but neither is your agency, so fire them and hire a content creator. 5.
News & Media
I don't dare give away much of UNIDOS future surprise attacks but I will warn, this boycott is the quiet before the storm.
News & Media
I will warn you with caution, DO NOT MISUSE THIS PLAN!
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
"I will say this, I'll warn some of their guys," Ryan said.
News & Media
This gets a little gory, I'll warn you in advance.
News & Media
I'll warn you – like pancake making, this takes a bit of practice, so look on the first couple as testers.
News & Media
But if they end up becoming naughty little vandals like me I'll warn them of the dangers of going down that route".
News & Media
Until we do better at providing this (and I'll warn you now – it's not cheap) we won't get to grips with the fastest-growing illness of our times.
News & Media
There's one passage that gets a little spoiler-y, but I'll warn you when we get there so you can skip ahead.
News & Media
Expert writing Tips
Best practice
When using "I will warn", be clear and direct about the potential danger or issue. Specificity enhances the effectiveness of your warning.
Common error
Avoid using "I will warn" without providing sufficient context. Ensure the listener understands what they are being warned about to prevent confusion or misinterpretation.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I will warn" functions as a declarative statement expressing the speaker's intention to provide a warning in the future. This future intention is supported by Ludwig AI and can be observed in examples where a potential risk or undesirable outcome is anticipated.
Frequent in
News & Media
45%
Wiki
25%
Science
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "I will warn" is a grammatically sound and usable expression conveying an intention to provide a warning in the future. As Ludwig AI confirms, it's generally used in a neutral register, suitable for alerting someone to potential dangers or issues. While "I will warn" appears most frequently in News & Media contexts, it is versatile enough for various settings. Remember to be specific and clear when delivering your warning to maximize its effectiveness. If you seek alternative phrases, consider options like "I must caution you" or "Let me caution you". While uncommon, "I will warn" remains a useful tool for expressing future caution.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Let me caution you
Offers a warning in a more conversational manner.
I must caution you
Replaces "warn" with "caution" and emphasizes the speaker's obligation to deliver the warning.
I need to alert you
Focuses on conveying immediate attention to a potential risk.
I should forewarn you
Adds a sense of anticipation, suggesting the warning relates to something in the future.
I feel obliged to advise you
Highlights the speaker's sense of duty to offer the advice, adding a layer of formality.
I'm compelled to inform you
Emphasizes the speaker's lack of choice in delivering the information.
Be advised that
Presents a formal warning or notification.
It is my duty to inform you
Highlights the responsibility of the speaker to deliver the information.
I want to give you a heads up
Provides an informal warning about something.
Please take heed
Directly urges the listener to pay attention to the impending warning.
FAQs
How can I use "I will warn" in a sentence?
You can use "I will warn" followed by a statement of caution, such as "I will warn you about the icy roads" or "I will warn them not to touch the hot stove".
What is a formal alternative to "I will warn"?
For a more formal setting, consider phrases like "I must caution you" or "I feel obligated to advise you". These alternatives add a level of seriousness and respect.
Is "I'll warn" the same as "I will warn"?
"I'll warn" is simply a contraction of "I will warn". They carry the same meaning, but "I'll warn" is more informal.
What's the difference between "I will warn" and "I am warning"?
"I will warn" indicates a future action, whereas "I am warning" suggests an immediate or ongoing warning. For example, "I will warn you tomorrow" versus "I am warning you now".
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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested