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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
let know that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "let know that" is not correct in standard written English.
A more appropriate form would be "let [someone] know that." Example: "Please let me know that you received my email."
⚠ May contain grammatical issues
Wiki
News & Media
Alternative expressions(2)
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
1 human-written examples
So while it may seem like you have free reign and this is your masterpiece, you'll often be let know that that is not the case.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
I let Katy know that.
News & Media
They kind of let me know that.
News & Media
Let him know that.
Wiki
Let them know that.
Wiki
They are stronger, but you never let them know that.
Wiki
Let them know that People Food Rules Still Apply.
Wiki
If their profile is well-written, let them know that.
Wiki
MR: Thanks for letting us know that.
News & Media
This lets them know and let yourself know that you are highly serous.
Wiki
Let them know that they have choices.
News & Media
Expert writing Tips
Best practice
Always include the person you are informing when using "let know that". The correct structure is "let [someone] know that". For example, say "Let me know that you're coming" instead of "Let know that you're coming".
Common error
A common mistake is to exclude the person being informed. Remember to specify who you are informing by including an indirect object. Instead of saying the ungrammatical "Let know that", say "Let her know that" or "Let them know that".
Source & Trust
75%
Authority and reliability
2.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "let know that" functions incorrectly as it omits the necessary indirect object. The correct structure requires specifying who is being informed, making it a verb phrase requiring a direct and indirect object. According to Ludwig AI, the phrase is not correct in standard written English.
Frequent in
Wiki
50%
News & Media
50%
Science
0%
Less common in
Formal & Business
0%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "let know that" is considered grammatically incorrect in standard English due to the omission of an indirect object. Ludwig AI confirms that this is not a correct phrase. The correct and more common usage is "let someone know that", where "someone" specifies who is being informed. While the phrase occasionally appears in informal contexts, it is best to use more formal and grammatically sound alternatives such as "inform someone that" or "notify someone that" in professional or academic writing. Remember to always specify the recipient of the information for clarity and correctness.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
inform someone that
Replaces "let know" with the more formal "inform", indicating a direct act of communication.
notify someone that
Similar to "inform", but often implies a more official or procedural communication.
make someone aware that
Focuses on bringing something to someone's attention.
tell someone that
A more direct and common way to express the act of informing.
advise someone that
Implies providing guidance or a recommendation along with the information.
let someone be aware that
Emphasizes ensuring someone has knowledge of something.
apprise someone of the fact that
A more formal and somewhat archaic way to say "inform".
communicate to someone that
Highlights the act of conveying information.
announce to someone that
Suggests a formal or public declaration.
acquaint someone with the knowledge that
Indicates introducing someone to a specific piece of information.
FAQs
How to use "let someone know that" in a sentence?
The correct way to use it is by including the person you are informing. For example: "Please "let me know that" you received the package" or "Let them know that the meeting is postponed".
What can I say instead of "let know that"?
You can use alternatives like "inform someone that", "notify someone that", or "tell someone that" depending on the context.
Which is correct, "let know that" or "let someone know that"?
"Let someone know that" is the correct form. The phrase requires an indirect object (the person being informed) to be grammatically sound. "Let know that" is missing this object and is considered incorrect.
What's the difference between "let someone know that" and "inform someone that"?
"Let someone know that" is generally more informal than "inform someone that". "Inform" is a more direct and professional way of saying the same thing, suitable for formal contexts.
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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
75%
Authority and reliability
2.2/5
Expert rating
Real-world application tested