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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
it is only when
Grammar usage guide and real-world examplesUSAGE SUMMARY
"it is only when" is a correct and usable phrase in written English.
It is used to indicate an occurrence that is restricted to a specific time, or in response to certain conditions. For example: "It is only when I am outdoors that I can feel truly free."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
only when
only if
not until
exclusively when
solely when
it is conditional upon
contingent on
depending on whether
it hinges on
it wasn't until
it was only however
it was only well
we are just when
only following
it was just after
it began only when
it was not unless
it is just after
it was only after
it was only once
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
It is only when "Gods and Generals" holds its tongue that its virtues begin to emerge.
News & Media
It is only when exercise becomes its own reward, a compulsion, that it sticks.
News & Media
It is only when p38MAPK is maintained at its level 3 that we have the sole apoptotic outcome.
Science
It is only when we are that we win.
News & Media
But it is only when you reach the first floor that you hit the bling.
News & Media
It is only when you get older that you start thinking about the game more.
News & Media
It is only when looked at more carefully that these patterns reveal themselves to be figurative.
News & Media
It is only when Maggie meets Sylvia Pankhurst that her life is uprooted once more.
News & Media
Sadly, it is only when someone is killed that we get noticed.
News & Media
It is only when I am out here in the world that I feel alive.
News & Media
It is only when race enters the picture that Americans find themselves in a pitched battle.
News & Media
Expert writing Tips
Best practice
When using "it is only when", ensure that the main clause following "when" clearly articulates the specific condition or event that triggers the subsequent outcome. For example: "It is only when the problem is clearly defined that effective solutions can be developed."
Common error
Avoid using "it is only when" in situations where the condition is not truly exclusive. Overusing it can weaken your argument if other factors also contribute to the outcome. Be sure that the "when" clause is indeed the primary determining factor.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it is only when" functions as an adverbial clause introducer. It sets up a condition that must be met for the main clause to be true. Ludwig examples showcase its role in specifying necessary circumstances. Ludwig AI confirms that the phrase is grammatical and serves to emphasize a condition.
Frequent in
News & Media
65%
Science
20%
Formal & Business
5%
Less common in
Wiki
3%
Encyclopedias
2%
Academia
5%
Ludwig's WRAP-UP
In summary, "it is only when" is a versatile phrase used to emphasize a condition that must be met for a specific outcome to occur. As Ludwig AI confirms, it is grammatically sound and frequently used across diverse contexts, from news and media to scientific publications. While primarily neutral in register, its impact is strongest when used to highlight exclusivity. Be mindful of potentially weaker expressions when the condition isn't the primary factor. Consider alternatives like "only when" or "not until" for varied emphasis. Understanding its function and avoiding common errors will refine your writing. Ludwig's examples demonstrate its widespread applicability, solidifying its status as a valuable tool in English expression.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
only when
This is a shortened version of the original phrase, removing "it is" for brevity.
it is just when
Replaces "only" with "just" to provide a slight variation in emphasis, suggesting immediacy.
solely when
Substitutes "only" with "solely" to emphasize exclusivity of the condition.
exclusively when
Replaces "only" with "exclusively" to highlight that the condition is the single determining factor.
not until
Offers an alternative structure indicating a time constraint before an event can occur.
only if
Provides a conditional clause emphasizing the necessity of the condition.
it is conditional upon
Expresses the idea that something depends on specific conditions being met.
contingent on
Highlights the dependency of an event on a particular condition.
depending on whether
Implies that the outcome varies based on a specific circumstance.
it hinges on
Suggests that the result is critically dependent on a single key factor.
FAQs
How can I use "it is only when" in a sentence?
Use "it is only when" to emphasize that a particular outcome happens exclusively under specific circumstances. For example, "It is only when you practice consistently that you will improve your skills."
What's the difference between "it is only when" and "only when"?
"It is only when" is a more formal and emphatic version of "only when". The former adds slight emphasis but can sometimes sound redundant in informal contexts.
What can I say instead of "it is only when"?
You can use alternatives like "only if", "not until", or "exclusively when" to convey a similar meaning, depending on the specific nuance you want to express.
Is it grammatically correct to start a sentence with "it is only when"?
Yes, starting a sentence with "it is only when" is grammatically correct. It introduces a conditional clause that sets the stage for the main clause. For example, "It is only when all team members contribute that the project succeeds."
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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
4.5/5
Expert rating
Real-world application tested