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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 was he doing
Grammar usage guide and real-world examplesUSAGE SUMMARY
"What was he doing?" is a grammatically correct sentence in written English.
You can use this sentence to ask a question or to imply that someone was doing something unexpected or strange. For example: "I looked out the window and saw Joe walking through the park late at night; what was he doing?".
✓ Grammatically correct
News & Media
Alternative expressions(20)
did he was
did he say
if he was
he actually did
what was he writing
what was he saying
what was he thinking
what was he yelling
what was he holding
what was he playing
what was he hiding
what was he going
what was he trying
what was he searching
what was he looking
what was he studying
what did he study
what was he wearing
what was he suggesting
what you were doing
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
53 human-written examples
What was he doing?
News & Media
What was he doing here?
News & Media
What was he doing there?
News & Media
And what was he doing?
News & Media
Oh God! What was he doing, what was he doing?
News & Media
"What was he doing?" Mark Smith said.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
What's he doing?
News & Media
What is he doing?
News & Media
"What is he doing here?
News & Media
What's he doing there?
News & Media
What's he doing here?
News & Media
Expert writing Tips
Best practice
To avoid repetition and boring prose, you could reword it and use alternatives phrases such as "what was he up to" and "what actions did he perform" in order to achieve a greater effect.
Common error
Avoid using "what was he doing" in situations where the action is already known or obvious. It's best suited for inquiries about unclear or unexpected activities. If the activity is self-evident, a simple statement might be more effective.
Source & Trust
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "what was he doing" primarily functions as an interrogative clause used to ask about the actions or activities someone was engaged in at a specific time. As Ludwig examples show, the phrase is common in conversational contexts.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "what was he doing" serves as a grammatically sound and frequently used interrogative for inquiring about someone's activities. As Ludwig AI confirms, it's acceptable in written English. It commonly appears in news and media contexts, fulfilling purposes such as seeking information, expressing curiosity, or questioning actions. For alternative phrasing, consider "what was he up to" or "what actions did he perform" to convey different nuances. Remember to use it when the action is unclear or unexpected to increase impact. Given its versatility and widespread application, mastering the use of "what was he doing" enhances both clarity and engagement in communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
what was he up to
An idiomatic alternative, implying potential mischief or secret activity.
what was his activity
Replaces the more conversational "doing" with a more formal "activity".
what was he occupied with
Implies the person was busy or engaged in something that took their attention.
what actions did he perform
Uses more formal language to ask about the actions someone carried out.
what project was he working on
Specifies the context, suggesting the person was involved in a project.
what was he intending to do
Focuses on the planned or intended action, rather than the action itself.
what undertaking was he engaged in
A more formal and elaborate way of asking about someone's involvement.
what was his purpose
Focuses specifically on the intention or reason behind someone's actions.
what was his objective
Shifts the focus from the action itself to the purpose or goal behind it.
how did he spend his time
Changes the focus to time allocation, asking how someone used their time.
FAQs
How can I rephrase "what was he doing" to sound more formal?
For a more formal tone, consider using phrases like "what actions did he perform", "what was his activity", or "what undertaking was he engaged in". These options replace the more casual "doing" with more formal vocabulary.
When is it appropriate to use "what was he up to" instead of "what was he doing"?
The phrase "what was he up to" carries a connotation of potential mischief or secret activity. Use it when you suspect someone was doing something they shouldn't have been or when there's an element of surprise or curiosity about their actions.
Is "what was he doing?" grammatically correct?
Yes, "what was he doing?" is grammatically correct. Ludwig AI confirms that it's a standard way to inquire about someone's actions. It follows the proper structure for an interrogative sentence in past continuous tense.
How does "what was he doing?" differ from "what did he do?"
"What was he doing?" implies an ongoing action or a process, while "what did he do?" refers to a completed action. For example, "What was he doing when the accident happened?" focuses on the activity in progress. "What did he do after the accident?" focuses on the actions taken afterward.
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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
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested