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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
what they were doing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "What they were doing" is correct and usable in written English.
You can use it to ask about someone's activities. For example: I was so curious to know what they were doing in the kitchen.
✓ Grammatically correct
News & Media
Science
Alternative expressions(4)
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
60 human-written examples
The Romans knew what they were doing.
News & Media
That's not what they were doing".
News & Media
I asked what they were doing.
News & Media
"They knew exactly what they were doing".
News & Media
They really know what they were doing.
News & Media
"I didn't know what they were doing.
News & Media
"They didn't know what they were doing".
News & Media
We didn't know what they were doing".
News & Media
"We knew exactly what they were doing.
News & Media
Did they know what they were doing?
News & Media
He doesn't know what they were doing".
News & Media
Expert writing Tips
Best practice
Use "what they were doing" when you want to inquire about or describe ongoing activities of a group.
Common error
Avoid using "what they did" when you want to emphasize that the activity was in progress or ongoing. Instead, "what they did" is more appropriate for completed actions.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "what they were doing" functions as a noun clause acting as the object of a verb or a subject complement. It describes an activity in progress, focusing on the continuous nature of the action. As Ludwig AI suggests, it's grammatically correct and usable.
Frequent in
News & Media
80%
Science
10%
Formal & Business
5%
Less common in
Academia
2%
Encyclopedias
1%
Reference
2%
Ludwig's WRAP-UP
In summary, "what they were doing" is a versatile phrase used to inquire about or describe ongoing activities. Ludwig AI confirms its grammatical correctness and wide applicability. It is most commonly found in News & Media contexts but is acceptable in neutral settings. When writing, remember to use "what they were doing" to emphasize an activity in progress, and consider more formal or narrative alternatives like "the nature of their work" or "their actions" as needed. By avoiding confusion with completed actions and understanding the phrase's neutrality, you can effectively incorporate "what they were doing" into your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
the things they did
Simplifies the sentence structure, using a more direct phrasing.
their actions
Focuses on the specific actions performed, omitting the progressive aspect of the original phrase.
what they had been up to
Employs a more idiomatic and informal phrasing.
their activities
Replaces "doing" with a broader term, referring to any kind of activity.
what was occurring with them
Uses more formal and indirect language to describe the situation.
their undertaking
Replaces the continuous activity with focus on the final result of the activity.
the nature of their work
Shifts the focus towards the type of work or task being performed.
their line of action
Highlights a planned series of actions or steps taken.
the task at hand
Describes the activity in terms of a specific, immediate task.
the developments in their lives
Focuses on broader changes and events rather than just specific actions.
FAQs
How can I use "what they were doing" in a sentence?
You can use "what they were doing" to ask about or describe the activities of a group. For example, "I was curious about "what they were doing" in the lab".
What's a more formal way to say "what they were doing"?
A more formal alternative is "the nature of their work", which is suitable for professional or academic contexts. However, "what they were doing" is acceptable in most situations.
Is it correct to say "what they are doing" instead of "what they were doing"?
Both are correct, but they have different meanings. "What they are doing" refers to present activities, while "what they were doing" refers to activities in the past. The choice depends on the time frame you're referencing.
What can I say instead of "what they were doing" in a narrative?
In a narrative, you can use alternatives like "their actions" or "their activities" to vary your language and maintain reader engagement.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested