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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
for when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "for when" is a correct and usable phrase in written English.
You can use "for when" when you are making a statement about something happening in the future. For example: I wrote down the address for when we need to return the rental car.
✓ Grammatically correct
News & Media
Wiki
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
60 human-written examples
For when we didn't".
News & Media
"For when I feel empty.
News & Media
For when you can't decide.
News & Media
Except for when we weren't".
News & Media
For when he got married.
News & Media
Except for when he's invisible.
News & Media
Watch for when "stress" turns into "distress".
News & Media
For when I lose a kid.
News & Media
"For when someone asks me to play".
News & Media
Counterintuitive techniques for when you feel overwhelmed.
News & Media
Perfect for when summer shows up.
News & Media
Expert writing Tips
Best practice
Use "for when" to clearly indicate the purpose or preparation for a future event or situation. This helps provide context and clarifies the reason behind a specific action.
Common error
Avoid using "for when" to describe actions happening in the present. "For when" is specifically for future scenarios, so using it in the present tense can create confusion. For present actions, use "because" or "since".
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "for when" functions as a prepositional phrase that introduces a clause specifying the purpose or the intended time for an action. Ludwig AI confirms the phrase is usable in written English. It is frequently used to express preparation for a future event or condition.
Frequent in
News & Media
39%
Wiki
33%
Science
9%
Less common in
Formal & Business
4%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "for when" is a common and grammatically sound phrase used to express preparation or purpose related to a future event. As Ludwig AI confirms, its usage spans across various contexts, particularly in news, media, and general writing. While versatile, it's best used to refer to future scenarios, and writers should consider alternative phrasing for present actions. Understanding its purpose and common errors can help enhance clarity in writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
so that when
Indicates a purpose or reason that is realized at a certain time.
in preparation for
Highlights the act of getting ready for a future event.
with a view to when
Suggests a future goal related to a time or event.
to prepare for
Highlights the act of making ready or equipping oneself for something.
in anticipation of
Focuses on preparing for something that is expected to happen.
in anticipation that
Highlights expectation of a future event.
to be ready for
Emphasizes the state of preparedness for a future event.
as a precaution for
Emphasizes preventing something that might happen.
in case of
Suggests a contingency plan for a possible event.
when the time comes
Refers to a specific moment in the future.
FAQs
How can I use "for when" in a sentence?
Use "for when" to indicate preparation or purpose related to a future event. For example, "I'm saving money "for when" I retire" shows a future goal and present action.
What phrases are similar to "for when"?
Alternatives include "in anticipation of", "in preparation for", or "so that when", all indicating a purpose linked to a future time or event.
Is it correct to use "for when" at the beginning of a sentence?
While grammatically correct, starting a sentence with "for when" can sometimes sound awkward. It's generally better to integrate it within the sentence to ensure a smoother flow. For instance, instead of saying "For when it rains, I'll bring an umbrella", try "I'll bring an umbrella "for when" it rains".
How does "for when" differ from "in case"?
"For when" indicates preparation for a specific, sometimes anticipated, future event. "In case", like "in case of", suggests a contingency plan for a possible, often unexpected, event. For example, "I bought this "for when" I go camping" vs. "I bought this in case it rains".
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested