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
examines on
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "examines on" is not correct and not usable in written English.
The correct expression would typically be "examines" followed by the subject or object being examined, without the preposition "on." Example: "The researcher examines the effects of climate change on biodiversity."
⚠ May contain grammatical issues
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
5 human-written examples
The issue is as heated as the topics WESU examines on the air.
News & Media
The paper examines, on the basis of a field study, the process of organized participatory resource management.
Science
The present paper examines on the basis of the spontaneous fast reconnection model how the fast reconnection mechanism develops in a variety of physical situations.
Science
In particular, it examines on the glamorous history prior to communist liberation in 1949, which is museumized in the contemporary Shanghai landscape.
Science
This study examines on the impact of subpopulation ascertainment bias on population demographic inference using F ST values and principal components analysis (PCA).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
APSE publishes original articles examining on-going educational problems associated with science learning and teaching.
He added, though, that the practices examined on the program are not only ones he has witnessed personally.
News & Media
Pell has never been cross-examined on this claim.
News & Media
This issue is never examined on white talk".
News & Media
Mr. Schrempp will be cross-examined on Wednesday.
News & Media
REBOUNDS Jason Kidd was re-examined on Wednesday by Dr. David Altchek.
News & Media
Expert writing Tips
Best practice
Always use "examines" without the preposition "on". The verb "examine" is transitive and directly takes the object of examination.
Common error
Do not add "on" after "examines". It is grammatically incorrect and unnecessary. For example, instead of writing "The study examines on...", write "The study examines...".
Source & Trust
86%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "examines on" is generally considered grammatically incorrect. Ludwig AI shows the correct usage should be simply "examines", where "examines" acts as a transitive verb directly taking the object of the examination. It functions as a verb indicating scrutiny or detailed inspection.
Frequent in
Science
40%
News & Media
40%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "examines on" is grammatically incorrect. The correct and more concise form is simply "examines", followed directly by the object or subject being analyzed or investigated. Although some sources use the incorrect phrase, it's essential to adhere to standard English grammar for clear and effective communication. As Ludwig AI highlights, omitting "on" results in a grammatically sound sentence suitable for academic, professional and general use.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
examines
Omits the unnecessary preposition "on", resulting in grammatically correct phrasing.
investigates
Replaces "examines" with a synonym that also implies a thorough inquiry, without needing "on".
analyzes
Substitutes "examines" with a term focused on detailed analysis, removing the need for "on".
explores
Replaces "examines" with a verb suggesting a broader, less structured inquiry, and eliminates "on".
reviews
Substitutes "examines" with a term implying a critical assessment or survey, without "on".
scrutinizes
Replaces "examines" with a verb suggesting a very detailed and critical inspection, eliminating "on".
studies
Substitutes "examines" with a term that focuses on a systematic investigation or learning process, and discards "on".
assesses
Replaces "examines" with a term indicating an evaluation or judgment, removing "on".
considers
Substitutes "examines" with a verb indicating a thoughtful review or deliberation, without "on".
inspects
Replaces "examines" with a term indicating a close and careful observation, eliminating "on".
FAQs
What is the correct way to use the word "examines" in a sentence?
The word "examines" should be followed directly by the object of examination without the preposition "on". For example, "The researcher "examines the data"" is correct, while "The researcher examines on the data" is incorrect.
Is it ever correct to say "examines on"?
No, the phrase "examines on" is generally considered grammatically incorrect in standard English. You should use "examines" followed directly by the object or subject being examined.
What are some alternatives to using the phrase "examines on"?
Instead of "examines on", you can use alternatives like "investigates", "analyzes", or "studies", depending on the context. Always follow these verbs directly with the object of study.
Why is "examines on" considered incorrect?
The verb "examine" is a transitive verb, meaning it directly takes an object. Adding "on" creates an unnecessary prepositional phrase that disrupts the grammatical flow. It is more direct and grammatically sound to simply say "examines [object]".
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
2.8/5
Expert rating
Real-world application tested