let us know if

USAGE SUMMARY

"let us know if" is a correct and commonly used phrase in written English.
It is typically used to express a request for information or confirmation from someone. Here is an example: "Please review the attached document and let us know if you have any comments or concerns."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Let us know if you've ever used it.

The Guardian - Tech

Let us know (if you get there).

The New Yorker

Let us know if you try it.

The New York Times

Just let us know if you're interested!

The New York Times

Let us know if you see yourself!

University of California, Berkeley

Let us know if we can help!

Cornell University

Let us know if you can come.

Yale University

Let us know if it is.

The Guardian

Let us know if you disagree.

The Guardian

Let us know if we've missed any.

The Guardian - Music

Let us know if we can help you out".

The New York Times

Expert writing Tips

Best practice

When requesting feedback, follow up the phrase "let us know if" with a specific question or area of concern to guide the recipient's response.

Common error

Avoid ending a request solely with "Let us know if you have questions". Instead, prompt specific inquiries such as "Let us know if any section requires clarification".

Linguistic Context

The phrase "let us know if" functions as an imperative, prompting the recipient to provide information or confirmation. As Ludwig AI explains, it's a standard way to solicit a response.

Expression frequency: Very common

Frequent in

News & Media

44%

Academia

42%

Science

14%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, "let us know if" is a versatile and exceedingly common phrase used to invite responses or offer assistance. Ludwig AI confirms its grammatical correctness and frequent usage. While generally appropriate across many contexts, opting for more formal alternatives such as "please inform us if" may be suitable for highly professional environments. Remember to provide specific guidance when using the phrase to ensure a targeted and helpful response.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

tell us if

A simpler, more direct version using "tell".

let us know whether or not

Provides explicit optionality for a binary confirmation.

notify us if

Uses "notify" for a more direct and slightly less personal tone.

please inform us if

Replaces "let" with "inform" for a more formal tone.

inform us whether

Replaces "if" with "whether", offering a slightly more formal alternative.

kindly advise us if

Uses "kindly advise" for enhanced politeness and formality.

advise us whether

Combines "advise" and "whether" for increased formality and precision.

do tell us if

Adds emphasis using "do", but maintains a similar level of informality.

update us if

Similar to keep us updated, but implies a single update rather than continuous ones.

keep us updated if

Shifts the focus to ongoing updates rather than a single instance of information.

FAQs

How can I use "let us know if" in a sentence?

You can use "let us know if" to invite feedback or offer assistance, such as, "Please review the proposal and "let us know if" you have any suggestions" or "Let us know if you need any help with the project".

What is a more formal alternative to "let us know if"?

For a more formal tone, consider using phrases like "please inform us if" or "kindly advise us if". These options replace the informal "let" with more professional vocabulary.

Is it ever incorrect to use "let us know if"?

While generally acceptable, "let us know if" can sound informal in highly professional contexts. In those situations, a more formal alternative like "please notify us if" might be more appropriate.

What's the difference between "let us know if" and "let us know whether"?

While similar, "let us know whether" implies a binary choice or a specific condition, whereas ""let us know if"" is a more general invitation for any kind of relevant information. For example, "Let us know whether you prefer option A or B" versus "Let us know if you have any other ideas".