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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
why this was so
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'why this was so' is correct and usable in written English.
You can use it when you want to ask the reason why something happened or was the way it was. For example, "John's behavior at the party was strange - I'm not sure why this was so."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(15)
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
why this was so.
News & Media
Anne questioned why this was so.
News & Media
He didn't explain why this was so.
News & Media
The play speculates about why this was so.
News & Media
He has no idea why this was so.
News & Media
The researchers set out to determine why this was so.
News & Media
"I didn't get why this was so important to everybody.
News & Media
A report in January by the Crown Prosecution Service examined why this was so.
News & Media
Yesterday, there were a number of explanations of why this was so.
News & Media
Why this was so soon became clear as he came to what he called his "punchline".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
That's why this is so crucial".
News & Media
Expert writing Tips
Best practice
When using "why this was so" in formal writing, ensure the preceding sentence clearly establishes the 'this' being referred to.
Common error
Avoid using "why this was so" for very straightforward or obvious reasons. Simpler phrasing like "the reason" or "because" may be more appropriate.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "why this was so" functions as a causal conjunction, connecting a statement or observation with an inquiry or explanation of its cause or reason. It introduces a clause that seeks to clarify the underlying factors contributing to a particular situation. Ludwig examples show it used to introduce a question, explanation, or analysis.
Frequent in
News & Media
65%
Science
20%
Academia
10%
Less common in
Encyclopedias
3%
Wiki
2%
Formal & Business
0.1%
Ludwig's WRAP-UP
In summary, "why this was so" is a grammatically sound phrase used to explore the underlying reasons or causes behind a particular situation. Ludwig AI validates its correctness and highlights its frequent use in news, media, and scientific contexts. While "why this was so" is versatile, consider using more concise alternatives like "the reason for this" in formal writing or "why this happened" in informal settings. Be mindful of overuse and ensure the reference ('this') is clear. By understanding these nuances, you can effectively incorporate "why this was so" into your writing and avoid common errors.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the reason for this
More concise and direct; focuses on the reason.
the cause of this
Emphasizes the cause-and-effect relationship.
the explanation for this
Highlights the act of explaining the situation.
why this happened
Focuses specifically on the occurrence or event.
what caused this
Directly inquires about the causal agent.
the reasons behind this
Implies a deeper, more complex set of reasons.
the basis for this
Highlights the underlying foundation or justification.
what's the reason for this
Informal phrasing of the question.
the rationale behind this
Emphasizes the logical justification or reasoning.
how this came to be
Focuses on the process or sequence of events leading to the current state.
FAQs
How can I rephrase "why this was so" in a formal context?
In formal writing, consider using phrases such as "the reason for this", "the cause of this", or "the explanation for this". These alternatives provide a more concise and professional tone. For example, instead of "Researchers investigated why this was so", try "Researchers investigated "the reason for this"".
What are some less formal alternatives to "why this was so"?
For informal settings, you might use phrases like "why this happened" or "what caused this". These options are more conversational and direct. Instead of "I wondered why this was so", you could say "I wondered "why this happened"".
Is "why this was so" always grammatically correct?
Yes, "why this was so" is grammatically correct when used to inquire about or explain the reason behind a particular situation or event. Ludwig confirms that it is correct and usable in written English. The key is ensuring the 'this' has a clear and established reference in the preceding context.
What's the difference between "why this was so" and "what was the reason for this"?
"Why this was so" is a more concise and slightly less direct way of asking for an explanation. "What was the reason for this" is more explicit and emphasizes the reason itself. Both are generally interchangeable, but the former can sometimes sound more natural in certain contexts. Consider the flow and existing language in the text when choosing which to use.
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested