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
are under test
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are under test" is correct and usable in written English.
It can be used to indicate that something is currently being evaluated or assessed, often in a scientific or technical context. Example: "The new software features are under test to ensure they meet the required standards before the official release."
✓ Grammatically correct
Science
News & Media
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
2 human-written examples
At least three major European firms have fitted diesel vehicles with devices that switch off key parts of the emissions control systems when cars are being driven on the open road, and switch them on when they are under test in the emissions laboratory or MOT test bay.
News & Media
They have now been chosen as the photon detector for LHCb, and pre-series tubes are under test prior to mass production.
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
Although the drones that are under testing or consideration are generally on the smaller side, weighing ten to a few dozen pounds, they still can pose safety hazards if they land improperly or crash.
News & Media
Two modules working in turn are under tests now.
The stents available until now have been constructed for the arterial system, but stents designed for veins are under testing.
Science
I also knew that I was under test – what next, and could I bear to look at it?
News & Media
Light traps that give off radiation that attracts insects have been under test for many years.
Encyclopedias
But their faith in the holiest of smokes is under test.
News & Media
Table 1 Coding Systems represented in the database being under test.
At present, a CO2 engine has been successfully fabricated and is under test.
Science
A tantalum oven has been studied and a prototype is under test at IPN Orsay.
Expert writing Tips
Best practice
When describing a formal evaluation process, use "are under test" to clearly indicate the subject is currently being assessed, such as "New medical devices are under test before being released to the public."
Common error
Avoid using "are under test" in casual conversation. Opt for phrases like "being checked" or "being looked at" for everyday situations, reserving the phrase for formal or technical contexts.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are under test" functions as a verb phrase, indicating that a subject is currently undergoing a process of evaluation or assessment. As supported by Ludwig, this phrase suggests an active process of scrutiny and examination.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "are under test" is a grammatically sound and commonly used expression to indicate that something is presently being evaluated. Ludwig confirms its usability in formal and technical writing. It's most frequently found in scientific and news contexts to convey objectivity and accuracy. When aiming for precision, especially in professional communication, this phrase is appropriate. However, it's best to avoid using "are under test" in informal settings, where simpler alternatives like "being checked" might be more suitable. Remember, the context dictates the most appropriate phrasing. Alternatives like "are being evaluated" or "are undergoing testing" can provide nuanced options depending on the intended meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are being evaluated
Uses a more general term for assessment.
are undergoing testing
Emphasizes the process of testing.
are in the process of being tested
Adds more detail about the stage of testing.
are currently being assessed
Highlights the current status of assessment.
are subject to testing
Indicates that testing is a requirement.
are in experimental phase
Highlights experimental context of research.
are being validated
Uses a more formal term, especially for software or systems.
are in the trial phase
Focuses on real-world testing scenarios.
are being checked
Implies a more basic level of assessment.
are going through trials
Emphasizes the challenges of the assessment process.
FAQs
How can I use "are under test" in a sentence?
The phrase "are under test" indicates that something is currently being evaluated or assessed. For example, "The prototypes "are under test" to ensure they meet all safety regulations before mass production.
What can I say instead of "are under test"?
Alternatives include "are being evaluated", "are undergoing testing", or "are currently being assessed" depending on the specific context.
Is it better to say "are under test" or "are being tested"?
Both phrases are grammatically correct, but "are under test" implies a more formal or official evaluation, whereas "are being tested" is more general. Choose based on the tone and context of your writing.
What does it mean when something "are under test"?
When something "are under test", it means it is currently going through a series of procedures or experiments to determine its quality, performance, reliability, or safety.
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
4.5/5
Expert rating
Real-world application tested