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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
until required
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of the sentence "until required" is correct and usable in written English.
You can use it to describe a situation which has a deadline or which lasts until a certain point in time is reached. For example, "The students must continue to work on the project until required to submit their final report."
✓ Grammatically correct
Science
News & Media
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
Refrigerate until required.
News & Media
Set aside until required.
News & Media
Cover and refrigerate until required.
News & Media
Once done, refrigerate them until required.
News & Media
Store in the fridge until required.
News & Media
Let this simmer gently until required.
News & Media
Cover and set aside until required.
News & Media
Cover and keep in the fridge until required.
News & Media
Stir in the chopped pistachios and freeze until required.
News & Media
Adjust the seasoning to taste, and chill until required.
News & Media
Set aside (either at room temperature or somewhere warm) until required.
News & Media
Expert writing Tips
Best practice
When using "until required", ensure the context clearly defines what is required. Ambiguity can lead to confusion and incorrect execution of instructions.
Common error
Avoid embedding "until required" within overly complex sentences. This can make the sentence difficult to parse and may obscure the intended meaning. Simplify the sentence or rephrase for clarity.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "until required" functions as an adverbial phrase of time, modifying a verb to indicate when an action should occur. As Ludwig AI confirms, this is a correct and usable part of written English.
Frequent in
Science
54%
News & Media
39%
Formal & Business
7%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "until required" functions as an adverbial phrase of time, used to indicate that an action or state should persist until a specified requirement is met. Ludwig AI confirms its correct and usable status in written English. It appears frequently across various contexts, from scientific papers to news articles. Analysis of Ludwig examples reveals that "until required" is particularly common in science and news. When employing this phrase, clarity is key: ensure that the requirement is well-defined to avoid ambiguity. Consider alternatives like "until needed" or "until necessary" to suit the tone and context of your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
until needed
Replaces "required" with "needed", a more informal synonym.
until necessary
Substitutes "required" with "necessary", implying a condition rather than a command.
until requested
Focuses on the act of requesting, changing the emphasis from a general requirement to a specific request.
until called for
Emphasizes a demand or need arising, shifting the focus to the moment of need.
until further notice
Indicates an indefinite delay until a specific instruction is given.
until use
Simplifies the phrase, directly linking the action to the point of usage.
until directed
Highlights the aspect of being given instructions or directions.
until the time comes
Replaces "required" with a temporal reference, indicating a future event.
until activation
Specifies that something remains inactive until a particular event triggers its use.
until implementation
Highlights that something will remain in a draft state until the moment its implementation is triggered.
FAQs
How can I use "until required" in a sentence?
You can use "until required" to indicate a period of waiting or preservation. For example, "Refrigerate the mixture "until required" for the recipe".
What is a good alternative to "until required"?
Alternatives include "until needed", "until necessary", or "until requested", depending on the specific context.
Is it always necessary to specify storage conditions when using "until required"?
While not always mandatory, specifying storage conditions (e.g., "store in the fridge "until required"") provides clearer instructions and helps maintain the quality of the item being stored.
How does "until required" differ from "when needed"?
"Until required" implies a condition or instruction that must be met before use, whereas "when needed" simply indicates that something should be used at the point of need. "Until required" often suggests a preparatory action, whereas "when needed" does not.
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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