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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
has been valid for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has been valid for" is correct and usable in written English.
It can be used to indicate the duration for which something has been accepted or recognized as true or applicable. Example: "The warranty has been valid for two years since the date of purchase."
✓ Grammatically correct
News & Media
Science
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
1 human-written examples
This trend has been valid for over 40 years and is likely to continue until around 2020, by which time we will be able to place one bit of information on a single atom.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Under the bill, such immigrants could have obtained visas that would have been valid for four years and could have been renewed repeatedly.
News & Media
Later, contending that the placard should have been valid for parking all over the city, Sergeant Heyliger filed an appeal to the parking board.
News & Media
That such a state of affairs still exists when such criticisms have been valid for decades is a matter of national shame.
News & Media
The first officer was 31 years old and held a C-certificate which limited him to being first officer on the Dash 7. The certificate was issued on 5 January 1987 and had been valid for the Dash 7 since 23 February 1988.
Wiki
There was limited evidence that the proportional hazards assumption might not have been valid for the association between proton pump inhibitor exposure and mortality outcomes (Wald test, P=0.05).
Science
Therefore, the assumptions on determinants that formed the basis of intervention development might not have been valid for the adolescents in our trial.
Science
However, for low grade tumours and those of poorly specified anatomical location, incidence seemed to decrease in 1992-2008 (figs 3 and 4), so this assumption might not have been valid for these endpoints.
Science
For the data analyzed, [RT] is 7 μM (i.e. yielding up to 21 μM of ATP binding sites if h-sites exist) and the minimum [XT] is 46 μM, so the approximation [X] = [XT] would not have been valid for this lowest [ATP] data point.
Science
"Kodak" and "Coca-Cola" have been valid trademarks for longer than 75 years and show no signs of running out.
News & Media
However, these statistical comparisons may not have been valid if the number of isolates for both studies were similar.
Science
Expert writing Tips
Best practice
When using "has been valid for", ensure the subject is clearly defined and the duration is specific. For instance, "The driver's license has been valid for five years."
Common error
Avoid using "has been valid since" when you mean "has been valid for". "Since" indicates a starting point, while "for" specifies a duration.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has been valid for" functions as a stative verb phrase indicating the duration of a condition or state of legitimacy. As Ludwig AI points out, it signifies that something has been in a state of validity for a specified period.
Frequent in
Science
54%
News & Media
39%
Wiki
7%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "has been valid for" serves to define the period a condition or agreement has been in force. It is grammatically sound, as Ludwig AI confirms, and while not exceedingly common, is frequently found in scientific and news-related contexts. When writing, remember to differentiate its use from "has been valid since", keeping "for" to indicate duration and "since" to specify a starting point. Alternative phrases such as "has remained valid for" and "has been in effect for" can provide variety while maintaining clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has remained valid for
Emphasizes the continuation of validity over a period.
has been in effect for
Focuses on the period during which something is operational or applicable.
has been effective for
Highlights the success or effectiveness during the specified time.
has been applicable for
Stresses the suitability or relevance over a duration.
has held true for
Indicates that something has consistently proven to be correct or accurate.
has been legitimate for
Focuses on the legal or rightful status over a period.
has been operative for
Emphasizes the active or functioning state during the time.
has stood the test of time for
Highlights the ability to remain valid despite the passage of time.
has been the norm for
Indicates that something has been standard or typical during the specified time.
has been acceptable for
Focuses on the state of being satisfactory or allowable during the time.
FAQs
What is an alternative to "has been valid for"?
You can use phrases like "has been in effect for", "has remained valid for", or "has been applicable for" depending on the context.
How do I use "has been valid for" in a sentence?
Use "has been valid for" to indicate the duration for which something has been accepted or recognized. For example, "The warranty has been valid for two years."
What's the difference between "has been valid for" and "is valid for"?
"Has been valid for" indicates a duration in the past leading up to the present, while "is valid for" indicates a current validity period.
Can I use "has been valid since" instead of "has been valid for"?
No, "has been valid since" and "has been valid for" have different meanings. "Since" indicates a starting point, whereas "for" indicates a duration. Use "since" with a specific date and "for" with a length of time.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested