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
most common used
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "most common used" is not correct in English.
It should be "most commonly used." You can use it when describing something that is frequently utilized or prevalent in a particular context. Example: "The most commonly used programming languages in web development are JavaScript, Python, and PHP."
⚠ May contain grammatical issues
Science
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
In China, field-testing is most common used.
Science
There are many roughness parameters bur Ra is by far the most common used.
Science
Honeycomb sandwich panels (HC/SP) are the most common used structures for space vehicle.
Science
Nearest neighbor algorithm based on reference tags is the most common used algorithm in RFID location (Ni et al. 2003).
The most common used outage model in power system is the two-state Markov model, which shows in Fig. 1.
Among them, organic/aqueous biphasic system was the most common used approach as illustrated in Figure 4A.
One of the most common used methods is using multiple images or additional information for image enhancement.
To the contrary, the discourse strategies most common used tend to deny that the situation is worrying.
According to the reported studies, the most common used method for preparing CeO2/TiO2 heterojunction is the sol-gel method or the secondary redox method [40].
Science
In addition to the initially intravenous β-blockers, parenteral infusion of nicardipine and urapidil are the most common used antihypertensive therapy currently in mainland China.
The most common used drying techniques for various plant gums included oven drying [3], spray drying [4], freeze drying [5], and vacuum drying [6].
Science
Expert writing Tips
Best practice
When aiming for clarity and grammatical correctness, replace "most common used" with "most commonly used", "most frequently used", or "most widely used" to ensure your writing is accurate and professional.
Common error
Avoid combining "most common" (an adjective phrase) directly with a past participle like "used". Instead, use an adverb such as "commonly" to modify the verb correctly.
Source & Trust
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "most common used" functions as a descriptive element, attempting to specify the prevalence of something being utilized. However, according to Ludwig AI, the phrase is grammatically incorrect and should be replaced with a grammatically correct alternative.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, while the phrase "most common used" appears frequently in various contexts, it's grammatically incorrect. Ludwig AI suggests that the accurate and preferred alternatives are "most commonly used", "most frequently used", or "most widely used". Predominantly found in scientific literature, ensure you opt for the grammatically sound options, especially in formal writing, to maintain clarity and credibility. Prioritize accuracy over common but incorrect usage.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
most frequently used
Replaces "common" with "frequently", emphasizing the high number of occurrences.
most widely used
Substitutes "common" with "widely", highlighting broad adoption or distribution.
most often used
Employs "often" instead of "common", focusing on the repeated nature of usage.
predominantly used
Uses "predominantly" to indicate that something is used more than other things.
primarily used
Replaces "most common" with "primarily", focusing on the main purpose of usage.
commonly utilized
Substitutes "used" with "utilized" to sound more formal, replacing "common" at the same time.
generally used
Indicates that something is used by most people in a particular field or area.
typically used
Highlights that something is used as a standard practice or convention.
most usual
A simplified alternative, focusing on what is normal or expected.
standard practice
Shifts the focus from frequency to established procedure.
FAQs
How can I correct the phrase "most common used" in my writing?
The phrase "most common used" is grammatically incorrect. You should use "most commonly used", "most frequently used", or "most widely used" instead.
What is the difference between "most common used" and "most commonly used"?
"Most common used" is grammatically incorrect. "Most commonly used" is the correct form, where "commonly" is an adverb modifying the verb "used".
Is "most common used" ever acceptable in formal writing?
No, "most common used" is generally not acceptable in formal writing due to its grammatical error. Always opt for grammatically correct alternatives such as "most commonly used".
What are some synonyms for "most common used" that maintain a formal tone?
For a formal tone, consider using synonyms like "predominantly used", "primarily used", or "commonly utilized" instead of "most common used".
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
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested