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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
could not again
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could not again" is correct and usable in written English.
It can be used to express that something is not possible to do once more. Example: "After the incident, she felt she could not again trust him."
✓ Grammatically correct
News & Media
Wiki
Encyclopedias
Alternative expressions(3)
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
6 human-written examples
Even deeper, though largely hidden, were the psychological lesions caused by the strain of protracted warfare and by the sentiment that France could not again endure such a test.
Encyclopedias
"Given today's advanced software capabilities, it is hard to imagine why DHS and immigration courts could not again work together to schedule hearings before sending notices to appear," the ruling said.
News & Media
'It was me you were looking at, wasn't it?' He had reminded her later, oh, a long while later - but not so late that he could not again even begin to summon up that thing he supposed was fondness - that they were the very first words he had ever heard her utter.
News & Media
Because of a policy that a regular officer, once invalided to Australia, could not again be posted overseas, Rowell's period of active service was over.
Wiki
He also saw reparations as a means to ensure that Germany could not again threaten France and as well to weaken the German ability to compete with France's industrialization.
Wiki
With support from Colonel Blood's batteries, the Hessian, Hanoverian and Dutch infantry – now commanded by Count Berensdorf – succeeded in pushing the French and Irish infantry back into Oberglauheim so that they could not again threaten Churchill's flank as he moved against Tallard.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
But he's found commercial success before, so who's to say he couldn't again?
News & Media
Caperton could not cry again.
News & Media
That could not happen again.
News & Media
But the Devils could not score again.
News & Media
He could not kill again, he insists.
News & Media
Expert writing Tips
Best practice
Use "could not again" to emphasize a previous inability that is expected to continue, particularly in scenarios where a recurrence is undesirable.
Common error
Don't use "could not again" when a simple "could not" suffices. The 'again' adds emphasis on non-repetition, so reserve this phrase for cases where the lack of recurrence is significant.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could not again" functions as a modal construction expressing past inability with an emphasis on non-recurrence. As confirmed by Ludwig AI, this phrase indicates that something was impossible in the past and is implied to remain so.
Frequent in
News & Media
50%
Wiki
33%
Encyclopedias
17%
Less common in
Science
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "could not again" is a grammatically sound and valid English construction that expresses an inability to repeat an action or event. While the Ludwig AI confirms its correctness, it also signals a relatively uncommon expression that should be reserved to convey that a specific action or event was not possible in the past and will probably remain impossible in the future. Its usage is more frequent in news, wikis and encyclopedias. When using this phrase, it's important to consider the implications of emphasizing the lack of recurrence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
was unable to repeat
Changes from a modal verb construction to a simpler verb phrase to express inability.
was incapable of doing it again
Replaces 'could not' with 'was incapable of' for emphasis.
found it impossible to repeat
Emphasizes the impossibility of the action.
was not able to do it once more
Uses 'was not able' instead of 'could not', adding 'once more' for emphasis.
could never replicate
Uses the word 'replicate' to express inability to repeat something.
failed to reproduce
Implies failure to repeat an action or result.
couldn't recreate
Uses 'recreate' to indicate an inability to create something again.
was barred from repeating
Suggests an external restriction preventing repetition.
was prevented from doing so again
Emphasizes prevention as the reason for not repeating.
was not allowed to continue
Highlights permission as the limiting factor in repeating an action.
FAQs
How can I use "could not again" in a sentence?
Use "could not again" to indicate that something was not possible in the past and is expected to remain impossible. For example: "After the injury, he felt he "could not again" compete at the same level".
What's a simple substitute for "could not again"?
Depending on the context, you can use phrases like "was unable to repeat", "could never replicate", or "could not repeat" to convey a similar meaning.
Is it more formal to use "could not again" or "was unable to again"?
"Could not again" and "was unable to again" are generally interchangeable in terms of formality. The choice depends on the specific context and desired emphasis, however "was unable to" might sound slightly more formal.
When should I use "couldn't again" instead of "could not again"?
"Couldn't again" is a contraction of "could not again" and is suitable for informal contexts. In formal writing, it's best to use the full form ""could not again"".
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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
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested