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 not
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "but not" is correct and usable in written English.
It is typically used to indicate an exception or contrast to a preceding statement. Example: "I enjoy hiking, but not in the rain."
✓ Grammatically correct
News & Media
Science
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 not subcutaneous (s.c).
Science
But not EU nations.
News & Media
But not certain?
News & Media
But not that badly.
News & Media
But not on Sundays.
News & Media
But not until.
News & Media
But not her.
News & Media
But not Keegan Bradley.
News & Media
"Gone, but not gone.
News & Media
But not like Houston.
News & Media
"Soon, but not today".
News & Media
Expert writing Tips
Best practice
Use "but not" to introduce a specific exception or contrast to a previously stated condition or generalization. It helps to create clarity by pinpointing what doesn't conform to the general rule.
Common error
Avoid using "but not" when a simple negation suffices. Instead of saying 'I wanted to go, but not today', consider 'I wanted to go, but not today'.
Source & Trust
90%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "but not" functions as a conjunction introducing a contrast or exception to a preceding statement. Ludwig AI confirms its grammatical correctness, demonstrating its role in modifying or limiting the scope of a previous idea, as shown in various examples.
Frequent in
News & Media
85%
Science
10%
Formal & Business
5%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "but not" serves as a versatile conjunction to introduce exceptions or contrasts within a statement. As Ludwig AI confirms, it is grammatically correct and finds frequent use across numerous contexts. While simpler negations may suffice in certain instances, "but not" proves invaluable for clarifying limitations and refining meaning. Its neutral register renders it appropriate for diverse forms of communication, solidifying its status as a fundamental element of effective expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
except for
Indicates an exclusion from a general statement; more concise than "but not".
excluding
Specifically omits something from a group or consideration; similar in function to "but not".
with the exception of
Formally specifies that something is not included in a statement; more formal than "but not".
aside from
Similar to "except for", indicating an element that doesn't fit the general case.
apart from
Denotes something separate or distinct from the rest; similar in usage to "aside from".
save for
An archaic expression meaning "except for".
not including
Directly states that something is not part of a group; more explicit than "but not".
other than
Specifies something different or distinct; similar in meaning to "except for".
besides
Indicates that something is in addition to what has already been mentioned, often implying exclusion.
without
Emphasizes the absence of something in a given scenario; a stronger negation than "but not".
FAQs
How can I use "but not" in a sentence?
Use "but not" to introduce an exception or contrast. For example, "I enjoy most fruits, but not bananas" indicates that bananas are an exception to the fruits you enjoy.
What can I say instead of "but not"?
You can use alternatives like "except for", "excluding", or "with the exception of" depending on the context.
Is it ever incorrect to use "but not"?
While grammatically correct, overuse can make writing sound clunky. Consider whether a simpler negation or alternative phrasing might be more effective.
What's the difference between "but not" and "except for"?
"But not" introduces a contrast or exception, while "except for" specifically excludes something from a general statement. The choice depends on whether you want to emphasize the contrast or the exclusion.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
90%
Authority and reliability
4.6/5
Expert rating
Real-world application tested