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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
had worked on
Grammar usage guide and real-world examplesUSAGE SUMMARY
'had worked on' is correct and usable in written English.
It is a past perfect verb phrase, used to refer to a prior action that has been completed in the past. Example: She had worked on her English project for months before it was due.
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(5)
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
How could Britain's biggest newspaper and everything so many people had worked on be gone?
News & Media
Respondents answered in relation to one project they had worked on in the UK in the previous five years.
Science
Nutter highlighted it as one of the most enjoyable entries that he had worked on.
Wiki
Historically, Americans had worked on Saturday.
News & Media
Developers said they had worked on it.
News & Media
He had worked on piracy.
News & Media
Hornig had worked on the Manhattan Project.
News & Media
He also interviewed people who had worked on "Cleopatra".
News & Media
He had worked on lucrative business deals with the team.
News & Media
"This was the highest-profile athlete I had worked on.
News & Media
Auditors in those three offices had worked on Ahold's books.
News & Media
Expert writing Tips
Best practice
Use "had worked on" to clearly indicate that an action was completed before another point in the past. This helps to establish a timeline and avoid ambiguity.
Common error
Avoid using "worked on" when "had worked on" is required to establish the correct past perfect tense. For example, instead of saying "I worked on the project before I left the company", say "I "had worked on" the project before I left the company" to show that the work was completed before the departure.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had worked on" functions as a past perfect verb phrase, indicating a completed action prior to another point in the past. Ludwig's examples show its usage in various contexts, emphasizing prior involvement and effort.
Frequent in
News & Media
55%
Science
25%
Wiki
20%
Less common in
Formal & Business
0%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "had worked on" is a past perfect verb phrase used to indicate an action completed before another point in the past. Ludwig AI confirms its grammatical correctness and usability in various contexts. It's commonly found in news and media, science, and wiki sources, and serves the purpose of establishing a sequence of events, clarifying timelines and prior engagements. To ensure correct usage, remember to use it when indicating actions completed before another past action, avoiding simple past tense where past perfect is needed.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
had contributed to
Focuses on the contribution aspect, implying involvement and input into a project.
had participated in
Emphasizes the act of taking part in a task or project, highlighting involvement.
had been involved in
Highlights the state of being engaged or implicated in a task or project.
had labored on
Conveys a sense of effort and diligence applied to a specific task or project.
had devoted time to
Emphasizes the investment of time and effort into a particular project or activity.
had been employed on
Highlights the aspect of being hired or assigned to a specific task or project.
had exerted effort on
Focuses on the expenditure of energy and resources into a project or task.
had toiled on
Implies hard and continuous work on a specific task or project, often over a long period.
had collaborated with
Highlights working jointly with others on a project, focusing on teamwork.
had addressed
Implies taking action to deal with an issue or problem, signifying a focus on resolution.
FAQs
How is "had worked on" used in a sentence?
"Had worked on" indicates an action completed before another point in the past. For example, "She "had worked on" the report for weeks before presenting it to the team."
What are some alternatives to "had worked on"?
Alternatives include "had contributed to", "had participated in", or "had been involved in depending on the specific context".
What's the difference between "worked on" and "had worked on"?
"Worked on" indicates a simple past action, while "had worked on" indicates an action completed before another past action. "I worked on the project yesterday" vs. "I "had worked on" the project before the deadline."
Is it correct to say "I have worked on" instead of "had worked on"?
Using "I have worked on" implies a connection to the present. It's suitable when the experience is relevant now. "I have worked on similar projects, so I'm qualified." "Had worked on" is used exclusively for past events with a clear sequence.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested