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
did not changes
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "did not changes" is not correct in written English.
The correct form should be "did not change" as "did" already indicates the past tense. Example: "Despite the challenges, the plan did not change."
⚠ May contain grammatical issues
Science
News & Media
Academia
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
3 human-written examples
Insets (a) and (b) in Fig. 7 show the SEM images, where the particle sizes did not changes in comparison with fresh colloids (Fig. 3d).
Indeed deer during observations did not changes movement strategy by shifting among different motivational states.
Science
Including men who did not come to the conscription examination by imputing their BPP values did not changes the estimates.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
That did not change.
News & Media
Oxygen saturation did not change.
Science
Laboratory variables did not change.
Other variables did not change.
Science
Haematology did not change significantly.
Science
Other drugs did not change.
It did not change direction".
News & Media
Monetary policy did not change.
News & Media
Expert writing Tips
Best practice
Always use the base form of a verb after the auxiliary verb "did" in negative constructions. The correct form is "did not change".
Common error
Don't use the plural or third-person singular form of a verb after "did not". It is a common mistake to say "did not changes", but the correct form is "did not change".
Source & Trust
86%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "did not changes" is intended to function as a verb phrase expressing the absence of alteration or modification. However, it is grammatically incorrect. Ludwig confirms that the correct form is "did not change".
Frequent in
Science
33%
News & Media
33%
Academia
33%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "did not changes" is a grammatically incorrect construction. The correct form is "did not change". Ludwig's analysis reveals that while attempts to use this phrase appear across various contexts, especially science, news, and academia, its incorrect grammar undermines its effectiveness. It's crucial to use the base form of the verb after "did not" to maintain grammatical correctness. Remember, alternatives like "remained the same" or "stayed unchanged" can also effectively convey the intended meaning. Pay close attention to verb conjugation to ensure clarity and professionalism in writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
did not change
Corrects the grammatical error by using the base form of the verb after "did not".
did not alter
Substitutes "change" with the synonym "alter", keeping the original structure.
remained the same
Replaces the original phrase with a more formal expression indicating no alteration.
stayed unchanged
Uses a single adjective to convey the idea of not being altered.
was not modified
Employs a passive construction to express the lack of modification.
was not transformed
Employs a passive construction to express the lack of transformation.
did not experience change
Rephrases the idea to focus on the absence of an experience of change.
held constant
Uses a concise phrase common in technical contexts to indicate no change.
persisted unaltered
Combines a verb of continuation with an adjective indicating no change.
saw no modification
Employs a verb of perception to indicate the absence of any modifications.
FAQs
How do I correct the phrase "did not changes"?
The correct phrase is "did not change". The auxiliary verb "did" already indicates past tense, so the main verb should be in its base form.
What is a simple substitute for "did not changes"?
A simple substitute is "remained the same". This conveys the meaning of no change in a clear and concise way.
Is "did not changes" ever grammatically correct?
No, "did not changes" is not grammatically correct in standard English. The correct form is always "did not change".
How does "did not change" differ from "stayed unchanged"?
"Did not change" is a more common and versatile phrase, while "stayed unchanged" is slightly more formal and emphasizes the continuous state of remaining the same.
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
86%
Authority and reliability
1.8/5
Expert rating
Real-world application tested