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
on completing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on completing" is correct and usable in written English.
It can be used to indicate the action or state that occurs after finishing a task or activity. Example: "On completing the project, the team celebrated their success with a small gathering."
✓ 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
59 human-written examples
Therefore, choose one or two items at most, and focus on completing those.
News & Media
"We are working on completing a $416 million county jail.
News & Media
"Congratulations Issaya Nombo on completing your A.T.P.!" it reads.
News & Media
There are no time limits on completing individual clues.
News & Media
Congratulations on completing this introductory course in spoken Italian!
News & Media
MF Global had staked its survival on completing the deal.
News & Media
And Winston (Lamorne Morris) is fixated on completing a puzzle.
News & Media
That plan focused primarily on completing the gigantic holding tanks, he said.
News & Media
For the moment, the Dodgers will focus on completing a deal for a new manager.
News & Media
On completing it, he accepted the offer of a lectureship in the university's philosophy department.
News & Media
She went on completing what she was doing and showed no emotions.
News & Media
Expert writing Tips
Best practice
When using "on completing", ensure that the subject of the main clause can logically perform the action described in the "completing" phrase. For instance, "On completing the course, she received a certificate."
Common error
Avoid separating "on completing" from the element it modifies. Incorrect: "On completing the project, the deadline was met." Correct: "On completing the project, the team met the deadline."
Source & Trust
81%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on completing" functions as a prepositional phrase, modifying a verb or noun to indicate the timing of an action or event. Ludwig shows that it commonly introduces a clause that describes what happens after something is finished.
Frequent in
News & Media
39%
Science
33%
Wiki
12%
Less common in
Formal & Business
8%
Reference
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "on completing" is a grammatically sound and widely used prepositional phrase used to indicate the timing of an action that occurs immediately after finishing something. As Ludwig AI indicates, this phrase is adaptable to various contexts, but is most frequently seen in news and media, science, and wiki contexts. When using "on completing", ensure that the subject logically performs the action and avoid misplaced modifiers for clarity. Consider alternatives like "upon completion of" or "after finishing" to add variety to your writing. Ludwig's analysis confirms its utility and provides numerous real-world examples for reference.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
upon completion of
More formal alternative, often used in official documents or academic writing.
after finishing
Emphasizes the act of finishing, slightly less formal than "on completing".
having completed
Uses a perfect participle to emphasize the completed state.
once finished
Indicates a condition that is met after completion.
subsequent to finishing
Very formal, often used in legal or technical contexts.
following the completion of
More elaborate, emphasizing the sequence of events.
after the completion of
Similar to "after finishing" but more noun-focused.
with the completion of
Highlights the completion as an instrument or means.
at the end of
Focuses on the final stage of an activity.
when finished
Indicates a specific time or condition upon finishing.
FAQs
What phrases are similar to "on completing"?
You can use alternatives like "upon completion of", "after finishing", or "having completed" to convey a similar meaning.
How can I use "on completing" in a sentence?
Use "on completing" to introduce an action that immediately follows the completion of another. For example, "On completing the race, he collapsed from exhaustion."
Is it more formal to say "on completing" or "after completing"?
"On completing" and "after completing" are generally interchangeable, but "on completing" might be perceived as slightly more formal depending on the context.
Can "on completing" be used at the end of a sentence?
While it's grammatically correct, placing "on completing" at the end can sound awkward. It's better to restructure the sentence to place it at the beginning for clarity. For example instead of saying "He got the award, on completing the course" say "On completing the course, he got the award".
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
81%
Authority and reliability
4.6/5
Expert rating
Real-world application tested