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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
they do exist
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they do exist" is correct and usable in written English.
You can use it to affirm the existence of something, often in response to doubt or skepticism. Example: "Despite what some may believe, they do exist, and their impact on the environment is significant."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Formal & Business
Wiki
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
They do exist.
News & Media
Surprisingly, they do exist".
News & Media
They do exist, of course.
News & Media
A.: Yes, they do exist.
News & Media
Though limited, they do exist.
News & Media
Except that they do exist.
News & Media
They do exist on the ground.
News & Media
They do exist, but they're few and far between.
News & Media
They do exist; now the question is, how?
News & Media
"There are still independent newspapers and magazines, they do exist.
News & Media
While her critics are few, they do exist.
News & Media
Expert writing Tips
Best practice
Use "they do exist" to confidently assert the presence or reality of something, especially when addressing doubt or skepticism. It adds a tone of certainty to your statement.
Common error
Avoid using "they do exist" in overly simplistic sentences where a more direct affirmation would be more impactful. For example, instead of "Unicorns? They do exist!", consider "Unicorns are real!" for greater impact.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they do exist" functions as an affirmative statement, emphasizing the presence or reality of something. Ludwig AI confirms its usability, and examples show it often follows a statement of doubt or denial.
Frequent in
News & Media
33%
Science
22%
Wiki
12%
Less common in
Encyclopedias
5%
Formal & Business
5%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "they do exist" serves as a strong affirmation of something's reality, frequently countering doubt or skepticism. Ludwig AI confirms its grammatical correctness and widespread use. It's common across various contexts, particularly in news, science, and general media, though its formality depends on the surrounding text. While versatile, overuse in overly simplistic sentences should be avoided for stronger impact. The phrase carries a neutral register, suitable for many communication scenarios, making it a valuable tool for clear and affirmative expression.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they are indeed real
Emphasizes the reality of something with a stronger affirmation.
they actually exist
Highlights the factual existence, possibly against expectations.
they genuinely exist
Stresses the authenticity or lack of artificiality of their existence.
they are present
Focuses on the current presence rather than a general existence.
they can be found
Indicates that something exists and is discoverable.
they are a reality
Highlights that something is not just a concept but a tangible fact.
they are in existence
A more formal way of stating that something exists.
their existence is a fact
Posits their existence as an established and undeniable truth.
they are extant
A formal term indicating that something still exists.
they are not a myth
Counters the idea that something is imaginary or fictional.
FAQs
How can I use "they do exist" in a sentence?
Use "they do exist" to affirm the presence or reality of something, often in response to doubt or disbelief. For example, "Despite the skepticism, "they do exist", and their impact is noticeable."
What are some alternatives to "they do exist"?
You can use alternatives like "they actually exist", "they are indeed real", or "they are present" depending on the context.
Which is correct, "they do exist" or "they exist"?
Both "they exist" and ""they do exist"" are grammatically correct. "They exist" is a simple statement of fact, while "they do exist" adds emphasis, often in response to doubt or denial.
Is "they do exist" formal or informal?
"They do exist" can be used in both formal and informal contexts, but it is generally more common in informal or conversational settings due to its emphatic nature. In formal writing, consider using "they are in existence" for a more professional tone.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested