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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
upon their completion
Grammar usage guide and real-world examplesUSAGE SUMMARY
"upon their completion" is grammatically correct and can be used in written English.
It is a prepositional phrase that indicates something will happen or be done after a certain event or action is completed. Example: Upon their completion of the project, the team will present their findings to the board of directors.
✓ Grammatically correct
Academia
Wiki
Science
Alternative expressions(20)
upon their ethnicity
at their destination
upon their fitness
upon their location
in their view
upon their muse
upon their faith
upon their retirement
upon their size
at the point of conclusion
upon their leadership
upon their return
on their part
from their perspective
at their boundary
upon their enthusiasm
stemming from them
originating with them
upon their isolation
at their end
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
22 human-written examples
Upon their completion, they were installed at the east entrance.
Encyclopedias
"These estimates will be released upon their completion," the library said.
News & Media
The key technologies in this area were fully release fully released to the public upon their completion.
Our service is a busy one and subinterns will have a wide range of surgical and clinical experiences upon their completion.
Academia
The Financial Officer is the professor in charge of financial aid and placement, and he or she handles questions pertaining to departmental research, language study, and conference funding, and assists students in finding suitable positions upon their completion of graduate study.
Academia
All download packs offered unlocks upon their completion.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
The DLI group will receive this intervention upon their treatment completion, at approximately 12-weeks post-randomization.
Science
The majority of students doing UR in science plan to continue their education upon completion of their bachelor's degree (Bauer and Bennett, 2003).
Science
"It is ultimately up to US Fish and Wildlife to determine the origins of the seized ivory and authorize any release of these seized items back to their owners upon the completion of their analysis," spokeswoman Shelbe BensaidFuller said.
News & Media
Instead, shared values characterize all groups of alumni while differing opportunities and personal circumstances contribute to their diverse pathways upon completion of their studies, and over a lifetime.
In 2015, when his probation ended, Ramsden briefly moved to Houston, Texas, where felons have their rights automatically restored upon completion of their sentence.
News & Media
Expert writing Tips
Best practice
When using "upon their completion", ensure that the subject is clearly defined and that the subsequent action directly relates to the completed task. For example, avoid ambiguity by specifying what 'their' refers to.
Common error
Avoid using "upon their completion" in informal contexts. Opt for simpler alternatives like "after they finish" or "when they're done" to maintain a natural tone.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon their completion" functions as a prepositional phrase that introduces a time clause. It signifies that the action in the main clause will occur immediately after the completion of a particular task or event, as supported by Ludwig examples.
Frequent in
Academia
29%
Wiki
29%
Science
25%
Less common in
News & Media
13%
Formal & Business
4%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "upon their completion" is a grammatically correct prepositional phrase that establishes a temporal relationship, indicating that an event will occur directly after a task or project is finished. As Ludwig AI confirms, it is most commonly found in academic, scientific, and wiki contexts, maintaining a formal register. When using this phrase, ensure clarity by explicitly defining the subject ('their') and maintaining a formal tone. Remember that simpler alternatives are available for informal contexts. While "upon their completion" is considered grammatically correct, choosing more straightforward alternatives such as "after they finish" can sometimes be more effective for modern readers.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
following their finalization
Replaces 'completion' with 'finalization' and uses 'following' instead of 'upon'.
once they have concluded
Emphasizes the end of a process with 'concluded' replacing 'completion'.
after they are finished
Simplifies the structure and uses more common vocabulary.
subsequent to their accomplishment
Uses 'accomplishment' and 'subsequent' for a slightly more sophisticated tone.
at the point of conclusion
Focuses on the specific moment when something ends.
with the ending of their work
Emphasizes the 'work' aspect and uses a different prepositional structure.
at the close of their efforts
Uses 'close' and 'efforts' to convey a sense of finality and exertion.
on the termination thereof
More formal and legalistic alternative, using 'termination'.
after the implementation is done
Replaces 'completion' with 'implementation' and uses an active voice.
when they are done
Simplest and most direct alternative.
FAQs
How can I use "upon their completion" in a sentence?
Use "upon their completion" to indicate that something will occur immediately after a task or project is finished. For example, "Upon their completion of the report, the findings will be presented to the board."
What are some alternatives to "upon their completion"?
Alternatives include phrases like "after they finish", "once they have concluded", or "following their finalization", depending on the desired level of formality.
Is it better to use "upon their completion" or "after their completion"?
"Upon their completion" is more formal and emphasizes immediacy, while "after their completion" is slightly less formal. Both are grammatically correct, so the choice depends on the context and desired tone.
Which is correct: "upon its completion" or "upon their completion"?
The correct form depends on the subject. Use "upon its completion" when referring to a singular, non-personal subject (e.g., a building or a report). Use "upon their completion" when referring to a plural subject or a group of people.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested