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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
checking when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "checking when" is correct and usable in written English.
It can be used when inquiring about the timing of an event or action. Example: "I am checking when the meeting is scheduled to start."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(3)
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
23 human-written examples
A common cause is sloppy data checking when the companies purchase debts.
News & Media
But it makes for easy fact checking when we can simply repeat what we have written before.
News & Media
After retiring from teaching, he began working as a painter and got into house checking when customers began asking if he knew anyone to watch their home.
News & Media
Excited cries came from the back of the store as Mrs. Frankel's brother, Shua Hecht, 24, answered the constantly ringing telephone, responding to people placing orders or checking when their Shabbos flowers would arrive.
News & Media
Sarah Fatchett, managing director of 365 Response, the company behind the app, says: "The patient group becomes extremely agitated, because there is no way of checking when the transport provider will pick them up.
News & Media
Mr. Lutz did not happen to be checking when Britney developed pangs of guilt for taking a train home later than she was supposed to, but the system worked just as he had hoped: she volunteered the information that evening.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
37 human-written examples
But he needed to do a little personal fact-checking when he recalled —"If my memory is right"— that Fister's first start was against the Yankees.
News & Media
Zherdev had just finished serving two minutes for cross-checking when he stepped out of the penalty box behind the Rangers' defense.
News & Media
Often, this meant ignoring Trump's aggressive attacks, or simply referring voters to her Web site for fact-checking, when a specific rebuke might have been more clarifying.
News & Media
Toronto forward Darcy Tucker was sent to the box for cross-checking when he whacked John Madden in the back just as play had stopped with the puck safely nestled in Martin Brodeur's glove.
News & Media
Better check when we're in Addis.
News & Media
Expert writing Tips
Best practice
When using "checking when", ensure the context clearly indicates what is being checked and the specific event or action whose timing is being investigated. For example, "checking when the package will arrive" is clearer than just "checking when".
Common error
Avoid using "checking when" without specifying what is being checked. For example, instead of saying "I am checking when", provide the full context: "I am checking when the train departs".
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "checking when" primarily functions as an introductory phrase to an indirect question or clause. It sets the stage for inquiring about the specific time or moment something occurs, aligning with Ludwig's assessment of its correct usage.
Frequent in
News & Media
42%
Science
31%
Wiki
15%
Less common in
Formal & Business
4%
Encyclopedias
4%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "checking when" serves as a correct and common way to inquire about the timing of an event. Ludwig indicates its broad usability, supported by examples across various contexts, most notably in news, science, and wiki sources. While generally neutral in tone, more formal situations might benefit from alternatives like "ascertaining when" or "verifying when". Remember to clearly specify what's being checked to avoid ambiguity. Overall, "checking when" is a useful and versatile phrase, as supported by Ludwig.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
verifying when
Focuses on confirming or proving the time something occurs.
ascertaining when
Emphasizes discovering or finding out the specific time something happens.
confirming the timing of
More verbose; highlights ensuring the correct time is known.
determining when
Stresses the process of deciding or establishing the time.
finding out when
Indicates an effort to gain information about the time.
investigating when
Implies a more detailed search to establish the time.
establishing the time of
Formal phrasing; emphasizes setting or defining the time.
seeing when
Casual phrasing; indicates a simple observation of the time.
monitoring when
Focuses on observing the time that something happens.
assessing when
Implies a formal evaluation of the timing.
FAQs
How can I use "checking when" in a sentence?
You can use "checking when" to inquire about the timing of an event or action. For example, "I am checking when the meeting is scheduled to start", or "He's checking when the store opens".
What is a more formal alternative to "checking when"?
For a more formal tone, consider using phrases like "ascertaining when" or "verifying when", which add a level of sophistication suitable for professional contexts.
Is it okay to use "checking when" in academic writing?
While "checking when" is grammatically correct, it might sound too informal for some academic contexts. Consider using a more formal alternative such as "determining when" or "establishing the time of" for a more appropriate tone.
What's the difference between "checking when" and "seeing when"?
"Checking when" implies a deliberate act of verifying information, while "seeing when" suggests simply observing or waiting to find out the time something happens. The former is more active, the latter more passive.
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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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested