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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
might not last
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "might not last" is correct and usable in written English.
It can be used to express uncertainty about the duration or permanence of something. Example: "The battery life on this device might not last through the entire day."
✓ Grammatically correct
News & Media
Academia
Wiki
Alternative expressions(20)
might not do
might not know
might not work
might not agree
may not happen
might not come
might not mind
might not help
is unlikely to transpire
might not count
might not happen
might not like
might not occur
might not see
might not suffice
might not notice
might not go
is subject to change
might not have
is subject to cancellation
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
He also cautioned that the gains from the last two days might not last.
News & Media
Or he might not last until nightfall.
News & Media
"He might not last.
News & Media
This might not last long.
News & Media
That arrangement might not last forever, though.
News & Media
Germany's enthusiasm for refugees might not last.
News & Media
But those prices might not last.
News & Media
Yet there were signs the gains might not last.
News & Media
But Mr Morse argues that such growth might not last.
News & Media
But he warned that these profits might not last long.
News & Media
The celebration in Tehran might not last long, analysts say.
News & Media
Expert writing Tips
Best practice
When using "might not last", consider adding context to explain why something may be temporary. This provides clarity and strengthens your argument.
Common error
Avoid presenting "might not last" as a definite conclusion. It expresses possibility, not certainty. Use qualifiers if necessary to reflect the degree of uncertainty.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "might not last" functions as a modal verb phrase expressing uncertainty about the duration or permanence of something. It indicates a possibility that something will not continue for an extended period.
Frequent in
News & Media
68%
Academia
15%
Wiki
10%
Less common in
Science
3%
Formal & Business
3%
Reference
1%
Ludwig's WRAP-UP
In summary, "might not last" is a versatile phrase used to express uncertainty about the duration of something. As Ludwig AI confirms, the phrase is grammatically correct and widely used, particularly in news and media. It's essential to use this phrase accurately, understanding that it conveys possibility rather than certainty. Consider using alternative phrases like "could be temporary" or "may be short-lived" to add variety to your writing while maintaining clarity. Remember that context is key when choosing the most appropriate expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
may be short-lived
Emphasizes the potential brevity of something.
could be temporary
Highlights the non-permanent nature of something.
is unlikely to endure
Focuses on the low probability of something continuing.
will probably fade
Suggests a gradual disappearance over time.
is not expected to continue
Formal way to indicate the cessation of something.
might not hold up
Implies that something may fail under pressure or time.
is not guaranteed to remain
Emphasizes lack of assurance of continuation.
isn't going to stick around
Informal expression suggesting something will disappear soon.
is subject to change
Highlights the possibility of alterations or discontinuation.
has an uncertain future
Expresses doubt about the prospects of something.
FAQs
How can I use "might not last" in a sentence?
You can use "might not last" to express uncertainty about the duration of something, as in, "This good weather "might not last" long."
What are some alternatives to "might not last"?
Alternatives include phrases like "could be temporary", "may be short-lived", or "is unlikely to endure", depending on the specific context.
Is it better to use "may not last" or "might not last"?
"May not last" and "might not last" are often interchangeable. However, "might" can sometimes imply a slightly lower probability than "may". Choose the one that best reflects your intended degree of uncertainty.
What's the difference between "might not last" and "will not last"?
"Might not last" suggests a possibility that something will end, whereas "will not last" indicates a higher degree of certainty that it will end. The first conveys uncertainty, the second, a prediction.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested