Used and loved by millions
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
explain why that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "explain why that" is correct and usable in written English.
You can use it when asking someone to clarify the reasoning behind a statement or action. Example: "Can you explain why that decision was made during the meeting?"
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(1)
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
"I can't explain why that is.
News & Media
We explain why that was the case.
News & Media
Can you explain why that is true?
News & Media
And so, let me explain why that is.
Academia
Can you explain why that makes you "hopeful"?
News & Media
It is hard for me to explain why that is.
News & Media
The study also helps explain why that might be.
News & Media
Can you explain why that is and how it feels?
News & Media
Can you help explain why that mastery is so important?
News & Media
We explain why that leads to unsatisfactory results and how it can be corrected.
I'll talk to them and I'll explain why that didn't work.
News & Media
Expert writing Tips
Best practice
Use "explain why that" to directly request clarification on a specific point. This phrasing is suitable for situations where a clear and concise explanation is needed.
Common error
While "explain why that" is acceptable, in highly formal contexts, consider using alternatives like "elucidate the rationale behind that" for a more sophisticated tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "explain why that" functions as an interrogative phrase, used to solicit a reason or justification for a preceding statement, action, or situation. As Ludwig AI confirms, it is grammatically sound and commonly used.
Frequent in
News & Media
57%
Academia
19%
Science
13%
Less common in
Formal & Business
7%
Encyclopedias
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "explain why that" is a versatile and common interrogative phrase used to seek clarification or justification. Ludwig AI confirms its grammatical correctness and common usage across diverse contexts. While it is generally neutral in register, more formal alternatives exist for specific situations. Its frequent appearance in news, academic, and scientific sources underscores its widespread applicability.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
what's the explanation for that?
Frames the request as seeking a specific explanation.
clarify the reason for that
Replaces "explain" with "clarify", focusing on making the reason more understandable.
what's the reasoning behind that?
Focuses on the logical thought process or rationale.
give a reason for that
A more direct and straightforward way of asking for an explanation.
justify that
Emphasizes the need to provide a valid justification or defense for something.
what are the causes for that?
Directly seeks the underlying causes or factors.
elucidate why that is
Uses a more formal tone to request a detailed explanation.
account for that
Asks for a comprehensive explanation that covers all relevant aspects.
shed light on why that happened
Suggests uncovering hidden or unclear reasons.
walk me through that
Requests a step-by-step explanation of the process or reasoning.
FAQs
How can I use "explain why that" in a sentence?
You can use "explain why that" to request clarification or justification. For example: "Can you explain why that decision was made?" or "Could you explain why that result occurred?"
What are some alternatives to "explain why that"?
Alternatives include "clarify the reason for that", "justify that", or "give a reason for that". The best choice depends on the context and desired level of formality.
Is "explain why that" formal or informal?
"Explain why that" is generally considered neutral and can be used in various contexts. However, more formal alternatives like "elucidate" might be preferred in academic or professional settings.
How does "explain why that" differ from "what is the reason for that"?
"Explain why that" directly requests an explanation, while "what is the reason for that?" is a more general inquiry about the underlying cause. They are often interchangeable, but "explain why that" might be more suitable when addressing a specific action or statement.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested