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
both demonstrated
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "both demonstrated" is correct and usable in written English.
It can be used when referring to two subjects or entities that have shown or proven something. Example: "The two studies both demonstrated the effectiveness of the new treatment."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
60 human-written examples
Liverpool and West Bromwich Albion have both demonstrated the value of changing managers during the season.
News & Media
Both demonstrated his talent for exposing human quirks in the middle of two-fisted choreography.
News & Media
Neither was fancy or fussy, yet both demonstrated that austere steps can be rich in emotional implications.
News & Media
The reception given to both demonstrated the timelessness of Lloyd's silent comedy.
Encyclopedias
He believes that Morris shares a place with Alistair Cooke in that 'they both demonstrated in every story they filed that genuine English literature can appear in journalism'.
News & Media
Volunteering and social interaction are both demonstrated boosts for older adults and their physical, emotional and cognitive well-being.
News & Media
While Mr. Kerry and Mr. Edwards have both demonstrated the physical and mental endurance that now seems a requisite for presidential candidates, Mr. Kerry has been the real comeback star this year.
News & Media
The decision to reveal the size of the US nuclear stockpile both demonstrated a long-delayed commitment to transparency, and provided a graphic illustration that at least some of the weapons states have been doing something about disarmament.
News & Media
Telltale Games, with its video game adaptation of The Walking Dead and Game of Thrones, and Supermassive Games, with 2015's teen horror drama Until Dawn, have both demonstrated how interactive drama can work in the living room.
News & Media
These are two great players and they have both demonstrated why in this series – Monday there were glimpses of Jayawardene wristily dismissing the ball to the boundary in a manner that had even the non-romantics purring with pleasure.
News & Media
Nearly overshadowed by the weather were the parallels in the situations of Russo & Steele and the collector-car market as a whole — both demonstrated surprising resilience here.
News & Media
Expert writing Tips
Best practice
When using "both demonstrated", ensure that the subjects you're referring to are clearly defined and that the demonstration is evident from the context. This helps maintain clarity and avoids ambiguity.
Common error
Avoid using "both demonstrated" without clearly specifying what 'both' refers to. Ambiguity can arise if the reader isn't immediately aware of the two entities or concepts being discussed. Ensure the context makes the subjects of the demonstration explicit.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "both demonstrated" typically functions as a verb phrase, indicating that two distinct subjects or entities have collectively shown or proven something. As confirmed by Ludwig, this is a grammatically correct and usable construction in English.
Frequent in
Science
52%
News & Media
32%
Wiki
4%
Less common in
Encyclopedias
2%
Formal & Business
10%
Ludwig's WRAP-UP
In summary, the phrase "both demonstrated" is a grammatically sound and versatile expression used to convey that two subjects have independently shown or proven a particular quality or action. As noted by Ludwig, this is a perfectly acceptable construction. It's frequently employed in scientific and news contexts, as evidenced by the numerous examples provided. When using this phrase, ensure clarity by explicitly defining the entities to which 'both' refers. Alternatives such as "both showed" or "both illustrated" can provide nuanced variations, but "both demonstrated" is a solid choice for formal and neutral communications. Considering the range of reliable sources where the expression appear, you can use it with confidence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
both showed
This alternative is a more direct and simpler way of saying that two things demonstrated something.
they both showed
This alternative reorders the sentence structure while maintaining a similar meaning and directness.
both illustrated
This alternative emphasizes the act of making something clear or providing an example.
both proved
This alternative suggests a more definitive confirmation of something.
both exhibited
This alternative focuses on displaying or revealing a particular quality or behavior.
both displayed
Similar to 'exhibited', this emphasizes the visible presentation of something.
both indicated
This alternative suggests that something served as a sign or indication of something else.
both reflected
This alternative implies that something mirrored or represented something else.
both confirmed
This alternative suggests that something validated or verified something else.
each demonstrated
This alternative emphasizes each entity separately showing something.
FAQs
How can I use "both demonstrated" in a sentence?
Use "both demonstrated" to indicate that two subjects have shown or proven a particular quality or action. For example, "The studies "both demonstrated" a significant improvement".
What are some alternatives to "both demonstrated"?
Alternatives include "both showed", "both illustrated", or "both proved", depending on the specific nuance you want to convey.
Is it better to say "both demonstrated" or "each demonstrated"?
"Both demonstrated" emphasizes the collective action of two entities, while "each demonstrated" highlights their individual actions. The choice depends on whether you want to stress their shared action or their separate contributions.
What's the difference between "both demonstrated" and "they both showed"?
"Both demonstrated" is slightly more formal and emphasizes the act of demonstrating, whereas "they both showed" is more conversational and focuses on the act of showing. The formality may vary depending on the context.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested