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
let you know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "let you know" is correct and usable in written English.
You can use this phrase when you want to inform someone that you will be providing them with additional information in the future. For example: "Once I have more information, I will let you know."
✓ Grammatically correct
News & Media
Academia
Alternative expressions(20)
i'll keep you updated
i'll get back to you
give to you
i will review and revert back you soon
share with you
update you on
impart to you
give you an update
give you updates
give me the details
keep you informed
advise you of
Disclose to you
update you
transit to you
get me up to speed
Explain to you
give you
let you understand
extend to you
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
To let you know".
News & Media
He'll let you know".
News & Media
Friends let you know.
News & Media
YOU: I'll let you know.
News & Media
Again, I'll let you know.
News & Media
And I'll let you know".
News & Media
I will let you know.
News & Media
And we'll let you know.
News & Media
I'll let you know asap.
News & Media
We'll let you know when".
News & Media
So we'll let you know.
News & Media
Expert writing Tips
Best practice
Use "let you know" when you intend to provide information in the future. It's a versatile phrase suitable for many contexts.
Common error
While "let you know" is useful, avoid overusing it. In some cases, a more specific phrase might be more appropriate to clearly communicate your intentions.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "let you know" functions as a promise of future communication. Ludwig confirms its acceptability. It is commonly used to indicate that the speaker will provide information or an update to the listener at a later time.
Frequent in
News & Media
63%
Academia
7%
Formal & Business
1%
Less common in
Science
1%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "let you know" is a versatile and grammatically sound expression used to promise future communication. Ludwig AI confirms its correct usage and high frequency in various contexts, particularly in news and media. While generally neutral in register, its formality can shift based on context. When writing, remember to use it appropriately and avoid overuse, considering more specific alternatives when clarity is paramount. It's also crucial to use the correct form, avoiding common errors like "let you knew".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
i'll inform you
This alternative is more direct and slightly more formal than "let you know".
i'll notify you
This alternative is a more formal and official way of saying you will inform someone.
i'll update you
This alternative focuses specifically on providing new information.
i'll keep you updated
This alternative emphasizes providing ongoing information as it becomes available.
i'll communicate with you
This alternative is a broader and more formal way of saying you will get in touch.
i'll get back to you
This alternative implies a response to a query or request.
i'll give you a heads-up
This alternative is more informal and suggests a warning or prior notification.
i'll be in touch
This alternative indicates a general promise of future communication.
i'll send word
This alternative is slightly old-fashioned and implies sending a message.
i will apprise you of the situation
This alternative is very formal and suggests conveying detailed information.
FAQs
How can I use "let you know" in a sentence?
You can use "let you know" to indicate that you will provide information at a later time. For example, "I'll "let you know" the results as soon as I have them."
What's a more formal way to say "let you know"?
More formal alternatives include "I will inform you", "I will notify you", or "I will apprise you of the situation."
Is it correct to say "let you knew" instead of "let you know"?
No, "let you knew" is grammatically incorrect. The correct phrase is ""let you know"", where "know" is the base form of the verb.
When should I use "let you know" versus "tell you"?
"Tell you" implies immediate communication, while ""let you know"" suggests communication at a later time after you have obtained more information.
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested