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 let them know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I let them know" is correct and usable in written English.
You can use it when you want to express that you informed someone or a group of people about something. Example: "After the meeting, I let them know about the changes in the project timeline."
✓ Grammatically correct
News & Media
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
58 human-written examples
So I let them know.
News & Media
I let them know what's happening.
News & Media
"I let them know I wasn't real happy," Howe said.
News & Media
If I can do something, I let them know".
News & Media
"But I let them know, it's just him".
News & Media
We were pants in the first half and I let them know.
News & Media
I let them know what they need to create and inspire them to create it".
News & Media
They are naturally curious and I let them know that it's fine to ask questions.
News & Media
I let them know that this is one thing high schools look at.
News & Media
Good work was assumed, so I let them know only when something didn't go well.
News & Media
"I let them know he was a can't-miss kid," Ringo said in a telephone interview.
News & Media
Expert writing Tips
Best practice
Consider the audience and adjust the level of formality. In professional settings, "I informed them" might be more appropriate.
Common error
Avoid using "I let them know" without clearly establishing who "them" refers to. Ensure the antecedent is unmistakable to prevent confusion.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I let them know" functions as a declarative statement indicating that the speaker communicated certain information to a group of people. Ludwig examples show it used in diverse contexts, from sports to business, consistently conveying the act of informing.
Frequent in
News & Media
70%
Science
20%
Formal & Business
5%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "I let them know" is a common and grammatically sound phrase used to indicate that you communicated information to someone. Ludwig AI confirms its widespread use in various contexts, particularly in news and media. While generally neutral, consider more formal alternatives like "I informed them" for professional settings. Pay attention to pronoun clarity and specific context to ensure effective communication. The phrase serves the purpose of reporting and confirming the act of informing an audience about a particular subject matter.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I informed them
This is a more formal and direct way of saying you communicated information.
I kept them informed
Highlights the ongoing nature of providing information.
I notified them
Similar to 'informed,' but often used in a more official or procedural context.
I told them
A simpler, more casual way of saying you communicated something.
I made them aware
Focuses on ensuring the other party understood the information.
I communicated to them
Emphasizes the act of transmitting information, possibly through a specific channel.
I advised them
Suggests providing guidance or a recommendation in addition to information.
I apprised them of
A more formal way to indicate that you provided detailed information.
I filled them in
Implies providing missing or necessary information to someone.
I kept them in the loop
Indicates regular updates and inclusion in an ongoing exchange of information.
FAQs
What is a more formal way to say "I let them know"?
You can use more formal alternatives such as "I informed them" or "I notified them" in professional or official contexts.
How can I make "I let them know" more specific?
Add details about what information you conveyed. For example, instead of "I let them know", say "I let them know about the project deadline".
Is it okay to use "I let them know" in academic writing?
While grammatically correct, "I let them know" might be too informal for academic writing. Consider using "I informed them" or "I communicated to them" for a more suitable tone.
What's the difference between "I told them" and "I let them know"?
"I told them" is a more general statement of communication, while "I let them know" implies a more specific act of informing someone about something particular. "I told them" can be used in a broader range of situations.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested