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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
did not existed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "did not existed" is not correct in English.
The correct form is "did not exist." You can use it when negating the existence of something in the past. Example: "The ancient civilization did not exist in the time period we previously thought."
⚠ May contain grammatical issues
Science
Wiki
News & Media
Alternative expressions(20)
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
6 human-written examples
(1) One part is the birth particles X k b i, w ˜ k b i, which did not existed in the previous time and are sampled from proposal distribution, when E k - 1 b i = e ¯, but E k (b)i = e.
One part is the birth particles X k b i, w ˜ k b i, which did not existed in the previous time and are sampled from proposal distribution, when E k - 1 b i = e ¯, but E k (b)i = e.
In March 2012, the team was not ranked in the world by FIFA and a senior national team still did not existed.
Wiki
Although it was well-organized, the National Hurricane Center did not initiate advisories on the depression until 1500 UTC on June 24, since it operationally appeared that a surface circulation did not existed until then.
Wiki
S100A3 was demonstrated to be overexpressed in gastric cancer by dataset GSE2669 and GSE2701, which did not existed in dataset GSE3438.
Science
However, the effects of LP to the EPEC-induced change of intestinal permeability was inhibited with the transfection of Ad-zonulin to NCM460 cells (P > 0.05, Figure 5C and D), while the impact did not existed when Ad-lacZ was transfected instead (P < 0.05, Figure 5C and D).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
It did not exist.
News & Media
They did not exist.
News & Media
lately said did not exist.
News & Media
The address did not exist.
News & Media
Those pictures did not exist".
News & Media
Expert writing Tips
Best practice
Always use "did not exist" instead of "did not existed". The auxiliary verb "did" requires the base form of the main verb.
Common error
Avoid using the past participle form of a verb after the auxiliary verb "did". Always use the base form. For instance, it's "did not exist", not "did not existed".
Source & Trust
88%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "did not existed" attempts to negate the existence of something in the past. However, it is grammatically incorrect, as Ludwig AI points out, because the auxiliary verb 'did' requires the base form of the verb 'exist'.
Frequent in
Science
40%
News & Media
40%
Wiki
20%
Less common in
Encyclopedias
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "did not existed" is an incorrect construction. As Ludwig AI indicates, the correct form is ""did not exist"". While some instances appear in varied sources, the grammatical error undermines the intended meaning. Always remember to use the base form of the verb after the auxiliary "did". Appropriate alternatives include "never existed" or "was nonexistent", depending on the specific context. Proper grammar ensures clarity and credibility in communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
did not exist
Corrects the grammatical error by using the base form of the verb "exist" after "did not".
never existed
Emphasizes that something has not existed at any point in time.
was nonexistent
Uses an adjective to describe the state of not existing.
had not existed
Indicates that something did not exist before a specific point in time.
did not come into being
Suggests that something never began to exist.
was not in existence
A more formal way to express that something did not exist.
did not occur
Indicates that an event or phenomenon did not take place.
was not present
Implies that something was absent or missing.
failed to materialize
Suggests that something did not become a reality or come to fruition.
was not to be found
Indicates that something could not be located or discovered.
FAQs
What is the correct way to say something didn't exist in the past?
The correct phrase is "did not exist". The word "did" is an auxiliary verb, and it requires the base form of the verb after it. For example, "That technology "did not exist" back then".
Is "did not existed" grammatically correct?
No, "did not existed" is grammatically incorrect. The correct form is "did not exist". The auxiliary verb "did" always takes the base form of the verb.
What are some alternatives to "did not exist"?
Depending on the context, you could use alternatives such as "never existed", "was nonexistent", or "had not existed".
How can I remember the correct verb form to use with "did not"?
Think of "did not" as a helper phrase that sets the tense. The main verb should always be in its simplest form. So, it's always "did not exist", "did not happen", "did not occur", and so on.
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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
88%
Authority and reliability
1.8/5
Expert rating
Real-world application tested