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
testing them out
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "testing them out" is correct and usable in written English.
You can use it when referring to trying something to see how it works or if it meets your needs. Example: "I just bought a new pair of running shoes, and I'm testing them out on my morning jog."
✓ Grammatically correct
News & Media
Science
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
20 human-written examples
"We're just testing them out".
News & Media
I love thinking up veg combinations and testing them out in the kitchen, then photographing the results.
News & Media
"President Trump," he repeated, speaking the words in a low murmur, as if testing them out to see how they might sound.
News & Media
Many, like me, are testing them out before they leave what they have done for decades — a sort of preretirement semi-job search.
News & Media
We have some ideas an we'll be testing them out over the next couple of months.
News & Media
"The portrayal of trying different hypotheses about the language, coming up with generalizations, and testing them out was spot on.
Science & Research
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
You test them out in the lab.
News & Media
They do work – but test them out first.
News & Media
"And they're super strong – I had to test them out in the toilet over there".
News & Media
They have lost their last three home games and we aim to really test them out".
News & Media
"I have to test them out, don't I?" I wheedled.
News & Media
Expert writing Tips
Best practice
When "testing them out", be specific about the criteria you are using to evaluate the subject. This adds clarity and credibility to your assessment.
Common error
Avoid making broad conclusions based on limited "testing". Ensure your sample size and testing conditions are representative before drawing definitive conclusions.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "testing them out" functions as a verb phrase, typically used as part of a clause, to describe the action of experimenting with or evaluating something. As Ludwig confirms, it's a valid and usable English construction.
Frequent in
News & Media
48%
Science
21%
Wiki
18%
Less common in
Formal & Business
5%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "testing them out" is a common and grammatically correct verb phrase used to describe the act of evaluating something through practical application. As Ludwig AI validates, this phrase is generally acceptable in written English. While frequently found in News & Media and scientific contexts, formal alternatives may be preferable for academic or highly professional writing. When using "testing them out", it's important to be specific about the evaluation criteria and avoid overgeneralizing results based on limited testing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
trying them out
A more direct and simple alternative, focusing on the act of trying.
putting them to the test
Suggests a more rigorous or challenging evaluation.
evaluating them
Focuses more on a formal assessment or judgment.
assessing their performance
Specific to evaluating how well something is functioning.
experimenting with them
Emphasizes a more exploratory and investigative approach.
assessing their effectiveness
Highlights the goal of determining how well something works.
piloting them
Used when referring to the start of implementing them
running trials
Suggests a structured, scientific approach to assessment.
validating them
Focuses on confirming the accuracy or reliability of something.
checking them out
More informal, implies a brief inspection or trial.
FAQs
How can I use "testing them out" in a sentence?
You can use "testing them out" to describe the process of trying something to see if it works or meets your needs. For example, "The company is "testing them out" before deciding whether to purchase them in bulk."
What's a more formal alternative to "testing them out"?
More formal alternatives include "evaluating them" or "assessing their effectiveness". These alternatives are suitable for professional or academic contexts where a more rigorous and objective evaluation is required.
What can I say instead of "testing them out"?
You can use alternatives like "trying them out", "experimenting with them", or "putting them to the test" depending on the context.
Is "testing them out" appropriate for academic writing?
While "testing them out" is generally acceptable, more formal phrasing like "evaluating their performance" or "assessing their effectiveness" may be more suitable for academic writing to maintain a professional tone.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested