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
a couple existed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a couple existed" is correct and usable in written English.
It can be used to indicate that two people or entities were present or in a relationship at a certain time. Example: "In the small town, a couple existed who were known for their generosity and kindness to others."
✓ Grammatically correct
News & Media
Science
Academia
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Overall, a coupling exists between urban land and the scope of human activities at the scales of the metropolitan area and the urban agglomeration.
Science
They figured that if this couple existed and their taxes went up, somebody would find them and jump on 'em".
News & Media
Though successful enough to maintain a staff that caters to all those personal and professional whims, the couple exist in an anxious state of arrested childhood.
News & Media
The couple exist in a hamster wheel of self-righteous competitiveness (who got up earliest, who ate the least, who cycles the fastest) that abates only once in the novel, as they commiserate with one another over the sudden, undesired proximity of Edison, Pandora's brother, whose obesity disgusts them more profoundly than I could comprehend.
News & Media
As the interfacial stress balance, which governs the fluid mechanics, is a function of γ, a strong coupling exists between surfactant transport dynamics and the fluid mechanics (physicochemical hydrodynamics).
This similarity, which is corroborated by seismic data, does not, however, mean that a chemical coupling exists between the subcontinental lithospheric mantle and continental crust in a similar way as for the oceanic lithosphere.
Science & Research
A strong coupling exists at the 10-kyr to 100-kyr scales between climatic cycles and the transfer time of regolith from source to sink.
Science
This can be true in iron-based superconductors where a strong coupling exists between electrons and the lattice, inducing closely tuned structural and magnetically ordered ground states with different fluctuations serving to provide a playground for ultrafast manipulation.
Academia
However, they also reveal that the liquid model sensitivities hold in LES, where a tight coupling exists between combustion model predictions and spray model assumptions.
Science
Because a tight coupling exists between vascular and metabolic responses to activation, these measurements can reveal considerable information about the latter and may even provide some clues as to the underlying neural responses.
Academia
A tight coupling exists between metabolic status in the heart and coronary blood flow.
Science
Expert writing Tips
Best practice
Use "a couple existed" when you want to emphasize the mere presence of two entities, without necessarily implying a relationship or interaction between them.
Common error
Avoid using "a couple existed" when you actually mean a larger, unspecified number. "Couple" specifically refers to two.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a couple existed" primarily functions as a statement of existence. It asserts that two entities were present or existed at some point in time. Ludwig AI indicates that this is a grammatically sound phrase.
Frequent in
News & Media
30%
Science
40%
Academia
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "a couple existed" is a grammatically correct and relatively infrequent way to state that two entities were present or in existence at some point in time. While Ludwig AI confirms its validity, alternative phrasings might be more common in contemporary usage. It is most likely to appear in news articles, scientific publications, or academic texts where setting the scene or providing historical context is necessary. Be sure to use this phrase to indicate the presence of only 2 elements.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a duo was in existence
More formal wording emphasizing the state of being in existence.
two individuals were present
A more formal and explicit way to say two people were there.
a pair occurred
Replaces "couple" with "pair" and "existed" with "occurred", slightly changing the focus.
a twosome was present
Replaces "couple" with "twosome", maintaining the focus on two individuals.
two were present
Uses a more direct and simple phrasing to indicate the presence of two entities.
a pair was in attendance
More formal and emphasizes the presence at an event or location.
a few were around
Indicates the presence of a small number, less precise than "a couple".
a set of two existed
Emphasizes that there were two as a part of a larger group or arrangement.
several were there
Suggests more than two, altering the quantity implied.
some were living
Focuses on the state of being alive or residing in a place, adding a specific condition.
FAQs
How can I use "a couple existed" in a sentence?
Use "a couple existed" to indicate that two entities were present or in existence at a particular time. For instance, "In the quiet village, "a couple existed" who were known for their kindness".
What are some alternatives to "a couple existed"?
Alternatives include phrases like "a pair occurred", "two were present", or "a duo was in existence", depending on the context.
Is it correct to say "a couple was existed"?
No, the correct phrasing is "a couple existed". The verb "existed" is already in the past tense, so using "was" is grammatically incorrect.
What is the difference between "a couple existed" and "a couple was there"?
"A couple existed" emphasizes the state of being or presence over time, while "a couple was there" simply indicates their presence at a specific point in time. The former implies more permanence or duration.
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
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested