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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
has been extended until
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'has been extended until' is correct and usable in written English.
You can use this phrase when you need to express that something has been lengthened or made to continue for a longer amount of time. For example: "The deadline for submitting applications has been extended until next Wednesday."
✓ Grammatically correct
News & Media
Business
Science
Alternative expressions(20)
will remain in effect until
has been obscured until
good through
has been prolonged until
applied until
effective until
expires on
is available until
has been forbidden until
has been closed until
has been used until
is appropriate until
is open until
has been delayed until
has been bailed until
is in force until
lasts until
is innocent until
is funny until
is true until
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
50 human-written examples
The production's run has been extended until June 15 , 2002
News & Media
The show has proved so popular that it has been extended until 17 July.
News & Media
It has been extended until at least the end of September.
News & Media
The authority funding has been extended until March 31 next year.
News & Media
The deadline to apply for next year's classes has been extended until Dec. 15 to fill the newly open spaces.
News & Media
The credit, which has been extended until April 30, pulled at least some of 2010's home sales forward.
News & Media
Also, the warranty has been extended until Sept. 30 for vehicles already past the 100,000-mile mark.
News & Media
That inquiry, which has been extended until Aug. 24, aims to learn the circumstances of his death and whether it was related to his detention and living conditions.
News & Media
As part of the concessions, the deadline for European regulators to rule on the takeover has been extended until Feb. 5.
News & Media
As a result, the European bail-out, which was due to end last year, has been extended until the end of February.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Procrastinators rejoice — the application deadline for Startup Battlefield, Disrupt San Francisco 2017 has been extended until Monday, July 17 at 12 pm PT.
News & Media
Expert writing Tips
Best practice
Clearly indicate the new end date when announcing an extension. For example, instead of just stating "the deadline has been extended", specify "the deadline has been extended until July 31st".
Common error
Avoid using "since" when you mean "until" with the phrase "has been extended". "Since" indicates a starting point, not an end point. For example, it's incorrect to say "the warranty has been extended since June". Instead, use "until": "the warranty has been extended until June".
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has been extended until" functions as a temporal marker, indicating the new end date or duration for something that was initially set to conclude earlier. As Ludwig AI confirms, it is grammatically correct and widely used. The examples show its versatility in various contexts.
Frequent in
News & Media
75%
Formal & Business
15%
Science
10%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "has been extended until" is a grammatically sound and frequently used phrase to communicate that something has been prolonged to a later date. As Ludwig AI confirms, it is perfectly valid and adaptable across various settings. It is most prevalent in news, business, and formal announcements. Remember to specify clearly what is being extended and the new end date to ensure clarity. Avoid confusion with "since", and note the nuances between "until" and "to".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has been prolonged until
Focuses on the act of prolonging something to a specific date.
has been continued until
Implies the continuation of something to a later date, often used in legal or procedural contexts.
has been postponed until
Emphasizes the act of delaying something to a later date.
has been rescheduled until
Highlights the act of changing the schedule to a later time.
has been adjourned until
Specifically used for meetings or legal proceedings that are paused and rescheduled.
is extended through
This version focus more on the continuity until the very end, using "through" instead of "until".
has been carried over until
Indicates that something is moved to a future time or date.
will remain in effect until
Emphasizes the continued validity or operation of something up to a specific date.
has been authorized until
Focuses on the permission or approval that allows something to continue until a specific date.
is now valid until
Focuses on the period something is valid until
FAQs
How can I use "has been extended until" in a sentence?
Use "has been extended until" to indicate that the duration of something has been prolonged to a specified future date. For instance, "The application deadline has been extended until August 15th to allow more candidates to apply."
What are some alternatives to "has been extended until"?
Alternatives include phrases like "has been prolonged until", "has been postponed until", or "will remain in effect until", depending on the context. Each subtly changes the nuance of the extension.
Is it grammatically correct to say "has been extended to" instead of "has been extended until"?
While "has been extended to" is sometimes used, "has been extended until" is generally more precise when referring to a specific end date. "Extended to" can sometimes imply a general scope rather than a definite endpoint.
What's the difference between "has been extended until" and "is valid until"?
"Has been extended until" implies that something's original end date has been changed to a later one. "Is valid until" simply states when something will expire, without necessarily implying an extension.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested