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
be on which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be on which" is not correct and does not convey a clear meaning in written English.
It is not a standard expression and may lead to confusion in communication. Example: "I need to clarify the point that should be on which we focus our efforts."
⚠ May contain grammatical issues
News & Media
Wiki
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
10 human-written examples
Owen and I were one of five players - along with Paul O'Connell, Richie Gray and Sam Warburton - who got to choose which players will be on which committees throughout the tour.
News & Media
I think the focus should be on which venue would be most effective in insuring that the terrorist is locked up for as long as possible.
News & Media
But the Jesus's wife fragment does, which shows pretty clearly that it could not have been composed before the PDF was available, no matter how old the papyrus turns out to be on which it was written.
News & Media
After two weeks of fixating over exactly whose bum would be on which seat next season, Sunday's Japanese Grand Prix is a chance to return to the other business of Formula One, behind the wheel.
News & Media
Investigators found that members of both the Florida and California teams were in Las Vegas in August, and they believe that final plans might have been coordinated then, including, quite possibly, what flights to hijack and which team members would be on which flight.
News & Media
There is a conference call at 1 15 with Intuit President and CEO, Steve Bennett and Google CEO, Eric Schmidt that we'll be on, which will have more details and at least some hints on the economics of the deal.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
Especially the one I'm on, which is more of a plateau.
News & Media
"The spreadsheet of which Labour M.P. is on which side".
News & Media
I can't remember who was on which side.
News & Media
It was impossible to tell who's on which side".
News & Media
"When he's on, which is often, you're at his mercy".
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "be on which" in formal writing. Opt for clearer and more common alternatives like "depend on which" or "rely on which" to ensure clarity and grammatical correctness.
Common error
Avoid constructing sentences that unnecessarily use "be on which". Simplification often leads to better clarity. Instead of saying something like, "The decision will be on which candidate performs best", try "The decision will depend on which candidate performs best."
Source & Trust
82%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be on which" functions as a prepositional phrase attempting to link a state of being to a selection or condition. However, Ludwig AI suggests that this is not a correct standard expression.
Frequent in
News & Media
55%
Wiki
35%
Science
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, while the phrase "be on which" appears in various sources, Ludwig AI marks it as grammatically incorrect and awkward. It attempts to link a state of being to a condition or choice, but clearer alternatives like "depend on which" or "rely on which" are generally preferred. Its usage is uncommon, appearing mainly in news and media and wiki sources. Therefore, it's best to avoid "be on which" in formal writing and opt for more grammatically standard and clear alternatives to ensure effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
depend on which
Focuses on the dependency or reliance on a particular choice or option.
rely on which
Highlights the reliance on a specific item or piece of information.
hinge on which
Emphasizes that the outcome or result significantly depends on a particular factor.
turn on which
Indicates that the result or situation changes based on a specific element.
be determined by which
Highlights that a specific outcome is set based on a choice.
be contingent on which
Emphasizes that something is conditional and depends on a factor.
be predicated on which
Suggests that something is based or founded on a particular basis.
rest on which
Indicates that something relies or depends on a particular foundation.
be conditional on which
Points out the dependence on a specific element for an event to occur.
be subject to which
Highlights the dependence on a specific factor or condition.
FAQs
What are some alternatives to "be on which"?
You can use alternatives like "depend on which", "rely on which", or "hinge on which" depending on the context.
Is it grammatically correct to use "be on which" in a sentence?
While you might find examples of "be on which", it is generally considered awkward and less grammatically sound than alternatives like "depend on which".
How can I rephrase a sentence using "be on which" to make it clearer?
Instead of saying "The focus should be on which venue would be most effective", a clearer phrasing would be "The focus should be on which venue would be the most effective" or "We should focus on the most effective venue".
What's the difference between "be on which" and "depend on which"?
"Be on which" is generally considered less grammatically correct and more awkward than "depend on which", which is a more standard and widely accepted construction.
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
82%
Authority and reliability
2.8/5
Expert rating
Real-world application tested