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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 done
Grammar usage guide and real-world examplesUSAGE SUMMARY
'had done' is correct and usable in written English.
It can be used to talk about something that was completed in the past before another event occurred. For example: She had done all her homework before she left for school.
✓ Grammatically correct
News & Media
Alternative expressions(20)
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
had done.
News & Media
Who had done it?
News & Media
I had done it.
News & Media
I had done that!
News & Media
had done what the White House had done.
News & Media
Now they had done it.
News & Media
He had done his job.
News & Media
He had done enough talking.
News & Media
He had done nothing wrong.
News & Media
And I had done it.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
He had done it.
News & Media
Expert writing Tips
Best practice
Use "had done" to clearly establish the sequence of past events, ensuring the action was completed before another past action. For example, "She had done her homework before she watched TV."
Common error
Avoid using "had done" when a simple past tense is sufficient. Overusing past perfect can make your writing sound unnatural. For example, instead of saying "I had done eat dinner when he arrived", say "I ate dinner when he arrived".
Source & Trust
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had done" functions as a past perfect construction, indicating an action completed before another point in the past. This is confirmed by Ludwig and the examples provided, which show it setting a clear chronological order in narratives.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "had done" is a grammatically sound and frequently used past perfect construction. As confirmed by Ludwig, it serves to indicate an action completed before another point in the past, which establishes the sequence of events and clarifies the timing of past actions. While highly versatile, avoid overuse to maintain a natural writing style. Alternatives such as "had completed", "had finished", and "had accomplished" can offer nuanced variations in meaning. The phrase is most commonly found in news and media sources, which indicates its appropriateness for various writing styles.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
had completed
A more direct synonym for "had done", focusing on the act of finishing something.
had finished
A simpler, more informal way of saying "had done".
had accomplished
Replaces "done" with a more formal term, emphasizing completion of something challenging.
had achieved
Similar to 'had accomplished', but focuses on the successful attainment of a goal.
had performed
Emphasizes the execution of a task or duty.
had executed
Similar to 'had performed', but suggests a more planned or deliberate action.
had carried out
Focuses on the completion of a plan or instruction.
had undertaken
Implies that someone had taken on a responsibility or task.
had enacted
Suggests the implementation of a law or policy.
had worked on
Focuses on the effort invested in a task, rather than just its completion.
FAQs
How is "had done" used in a sentence?
"Had done" indicates an action completed before another action in the past. For example, "By the time I arrived, she "had done" all the preparations."
What are some alternatives to "had done"?
Depending on the context, you can use phrases like "had completed", "had finished", or "had accomplished" instead of "had done".
Is it always necessary to use "had done" when referring to a past action?
No, it's not always necessary. Use "had done" only when it's important to show that one action was completed before another. Otherwise, simple past tense is sufficient.
What is the difference between "did" and "had done"?
"Did" refers to a simple action in the past, while "had done" refers to an action completed before another action in the past. For example, "I did my chores" vs "I "had done" my chores before my friends arrived".
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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
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested