Used and loved by millions
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
but sometimes not
Grammar usage guide and real-world examplesUSAGE SUMMARY
"but sometimes not" is a grammatically correct and usable phrase in written English.
You can use it to indicate that something only happens intermittently or not at all. For example: I try to make healthier eating choices, but sometimes not.
✓ Grammatically correct
News & Media
Science
Encyclopedias
Academia
Alternative expressions(20)
however not always
yet occasionally not
although not necessarily
however, not always
but not always
though not invariably
but not necessarily always
still, not always the case
but potentially not
but well not
but often not
but somehow not
but however not
but maybe not
but partly not
but consistently not
but still not
but also not
but perhaps not
but normally not
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
But sometimes not".
News & Media
They exist, but sometimes not for long.
News & Media
"But sometimes not every good turn works out".
News & Media
Sometimes she shares this with her husband, but sometimes not.
News & Media
Chinese was taught too, but sometimes not until later grades.
News & Media
Moral courage comes in many forms, but sometimes not at all.
News & Media
Frank want to believe him, but sometimes not so easy to do.
News & Media
Second, regions of climate, vegetation, and soils coincide generally but sometimes not precisely.
Encyclopedias
Once in a while dramatic events are recorded, but sometimes not by the diarists themselves.
News & Media
Occasionally we'd hear about the No. 1 pick, but sometimes not.
News & Media
"Sometimes not the best idea in the world, but sometimes not so bad".
News & Media
Expert writing Tips
Best practice
Use "but sometimes not" to introduce a specific exception to a general statement, adding nuance and accuracy to your writing. For instance, "I usually prefer tea, but sometimes not when I'm craving coffee."
Common error
Avoid using "but sometimes not" as a crutch to soften contradictory statements without providing sufficient context. Be clear about the conditions or situations where the 'not' applies to maintain clarity and avoid ambiguity.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "but sometimes not" functions as a conjunctional phrase, introducing a contrast or exception to a preceding statement. It indicates that while something is generally true, there are instances where it does not hold. Ludwig AI confirms its grammatical correctness and usability.
Frequent in
News & Media
75%
Science
15%
Encyclopedias
5%
Less common in
Academia
3%
Wiki
1%
Formal & Business
1%
Ludwig's WRAP-UP
In summary, "but sometimes not" is a versatile conjunctional phrase used to introduce exceptions or qualifications to a general statement. As confirmed by Ludwig, the phrase is grammatically sound and finds frequent usage across various contexts, especially in news and media. While generally neutral in register, it's crucial to use it judiciously, ensuring clarity and avoiding ambiguity by providing sufficient context for the exceptions being introduced. Using alternatives like "however not always" or "although not necessarily" can provide a different tone, depending on the specific nuance required.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
yet occasionally not
Replaces "but" with "yet" and "sometimes" with "occasionally", emphasizing the contrast with a less frequent occurrence.
however, not always
Uses "however" to introduce the contrast and "not always" to indicate the exception, providing a slightly more formal tone.
though not invariably
Replaces "but" with "though" and "sometimes" with "invariably", creating a more formal and nuanced expression of the exception.
although not necessarily
Similar to "though not invariably" but uses "necessarily" to highlight that the exception isn't a given.
but not necessarily always
Adds "necessarily" and "always" to emphasize that the preceding statement doesn't hold true in all circumstances.
still, not always the case
Employs "still" for contrast and specifies that the preceding statement "not always the case", making the exception explicit.
yet not consistently
Uses "yet" for contrast and "not consistently" to indicate that the preceding statement doesn't hold true on a regular basis.
however, exceptions exist
Uses "however" to show a contrast and "exceptions exist" which acknowledges the possibility of specific cases where it does not apply.
even so, it varies
Expresses contrast using "even so" and indicate variable outcomes with "it varies".
nonetheless, there are exceptions
Replaces "but" with "nonetheless" for stronger contrast, while indicating the presence of exceptions to the general rule.
FAQs
How can I use "but sometimes not" in a sentence?
Use "but sometimes not" to introduce an exception to a general statement. For example, "I enjoy exercising, "but sometimes not" when I'm really tired."
What are some alternatives to "but sometimes not"?
Alternatives include "however not always", "yet occasionally not", or "although not necessarily", depending on the context.
Is it more formal to say "however, not always" instead of "but sometimes not"?
Yes, "however, not always" tends to be more formal than "but sometimes not", which is suitable for more casual contexts.
When is it best to use "but sometimes not" versus "but not always"?
"But sometimes not" implies that the exception occurs less frequently, while "but not always" suggests the exception might be more common. The choice depends on the frequency you want to convey.
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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