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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
have done not
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have done not" is not correct and usable in written English.
It seems to be an incorrect arrangement of words that does not convey a clear meaning. Example: "I have done not what was asked of me." (This should be rephrased for clarity.)
⚠ May contain grammatical issues
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
24 human-written examples
(Meadowhall seems to have done not only for Sheffield's centre, but nearby Rotherham's as well).
News & Media
"These people have done not one experiment but five, and they have found the same effects".
News & Media
Inevitably, they are backward-looking, telling us what investors have done, not what they are likely to do.
News & Media
May God forgive you for what you have done, not only to me but to beloved Russia and its people.
News & Media
May God forgive you for what you have done, not only to me, but to beloved Russia and its people".
News & Media
Asked if he defended the Daily Mail he said "it's for them to defend what they have done, not me".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
34 human-written examples
"And the researchers we do have don't speak up.
News & Media
I'm trying to keep things the same as I always have done - not get too excited about it all.
News & Media
I think the relevant comparison is with what the country could have done -- not whether the economy eventually recovered.
News & Media
I have done that, she hasn't".
News & Media
Sometimes I could have but did not".
News & Media
Expert writing Tips
Best practice
Always use the correct grammatical form "have not done" or "did not do" to ensure clarity and avoid confusion.
Common error
Avoid placing "not" after "done". The correct placement is between "have" and "done" (i.e., "have not done") or using the auxiliary verb "did" with "not" (i.e., "did not do").
Source & Trust
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have done not" is an incorrect negation of the verb phrase "have done". It attempts to express that an action has not been completed. As Ludwig AI suggests, the correct forms are "have not done" or "did not do".
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
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Ludwig's WRAP-UP
In summary, the phrase "have done not" is grammatically incorrect and should be avoided in written English. As Ludwig AI points out, the correct alternatives are ""have not done"" or ""did not do"". These alternatives ensure clarity and adherence to standard English grammar. The incorrect phrase is not suitable for any formal or informal context. Therefore, always prioritize using the grammatically correct forms to avoid confusion and maintain credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have not done
This is the standard, grammatically correct negation of "have done".
did not do
Uses "did" as an auxiliary verb for past tense negation; clearer and more common.
have failed to do
Emphasizes a lack of success in performing an action.
have neglected to do
Highlights a failure to act due to oversight or carelessness.
have refrained from doing
Indicates a deliberate choice not to perform an action.
have avoided doing
Suggests actively staying away from performing an action.
have abstained from doing
Implies a formal or moral decision not to do something.
have skipped doing
Suggests a casual or intentional omission of an action.
have not acted
Focuses on the lack of action taken.
have not performed
Emphasizes the lack of completion of a task or action.
FAQs
What is the correct way to negate "have done"?
The correct way to negate "have done" is to place "not" between "have" and "done", resulting in "have not done". Alternatively, you can use "did not do".
Is "have done not" grammatically correct?
No, "have done not" is not grammatically correct. The correct form is "have not done".
What can I say instead of "have done not"?
Use alternatives like "have not done" or "did not do".
Which is correct, "have done not" or "have not done"?
"Have not done" is the correct grammatical form. "Have done not" is an incorrect word order.
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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
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested