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 surely not
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "but surely not" is correct and usable in written English.
It can be used to express doubt or disbelief about a statement or situation that has just been mentioned. Example: "I understand that some people believe the project will fail, but surely not after all the hard work we've put in."
✓ Grammatically correct
News & Media
Alternative expressions(18)
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 surely not.
News & Media
But surely not many.
News & Media
"It's difficult, but surely not impossible".
News & Media
But surely not this dismal.
News & Media
But surely not this simple.
News & Media
A crisis perhaps - but surely not death!
News & Media
But surely not everyone is as generous.
News & Media
But surely not an insoluble one.
News & Media
Honored, perhaps, but surely not surprised.
News & Media
But surely not as he intended.
News & Media
But surely not only to Germans?
News & Media
Expert writing Tips
Best practice
Employ "but surely not" to introduce a contrasting idea or perspective, especially when you want to express surprise or mild skepticism.
Common error
While "but surely not" is versatile, avoid overusing it in highly formal or academic writing. Opt for more direct or sophisticated alternatives to maintain a professional tone. For example, use "however, that is unlikely" or "nevertheless, this seems improbable" to achieve a similar effect with a more formal register.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "but surely not" functions as a conjunction phrase, linking a preceding statement with a contrasting or skeptical response. It indicates doubt, disbelief, or disagreement. As Ludwig AI indicates, the phrase is grammatically correct and usable.
Frequent in
News & Media
96%
Formal & Business
2%
Science
1%
Less common in
Social Media
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "but surely not" is a versatile conjunction phrase used to express doubt, disbelief, or polite disagreement. As Ludwig AI confirms, it is grammatically correct and widely accepted. It is most commonly found in news and media contexts, maintaining a neutral register suitable for both formal and informal communication. When writing, use it to soften contradictions, express surprise, or introduce contrasting viewpoints. Be mindful of overusing it in highly formal writing, opting for more sophisticated alternatives when necessary.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
but certainly not
Emphasizes a stronger degree of certainty in the negation compared to "but surely not".
but definitely not
Conveys a clear and firm negation, similar to "but certainly not" but with a more informal tone.
but I doubt it
Expresses skepticism more directly, focusing on the speaker's doubt rather than a general improbability.
but I find that hard to believe
Indicates disbelief with a focus on the speaker's perspective, suggesting the information is questionable.
but that's unlikely
Highlights the low probability of something happening, making it a slightly more formal alternative.
but hardly
A concise way to express that something is not the case, particularly after a previous statement.
but not really
Offers a softer negation, implying something is not entirely true or accurate.
but not at all
Emphasizes a complete negation, suggesting something is entirely untrue or does not exist.
but quite the contrary
Introduces a statement that is the opposite of what was previously said, providing a strong contradiction.
but on the contrary
Similar to "but quite the contrary", offering a contrasting viewpoint or situation.
FAQs
How can I use "but surely not" in a sentence?
"But surely not" is used to express doubt or disagreement, often in response to a previous statement. For example: "They said it would rain all day, but surely not every single hour?"
What are some alternatives to "but surely not"?
Alternatives include "but certainly not", "but I doubt it", or "but that's unlikely", depending on the specific nuance you want to convey.
Is "but surely not" grammatically correct?
Yes, "but surely not" is grammatically correct and commonly used in English to introduce a contrasting idea or express disbelief.
What's the difference between "but surely not" and "but certainly not"?
While both express disagreement, "but certainly not" implies a stronger degree of certainty in the negation compared to "but surely not", which conveys a milder sense of doubt.
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested