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
the reason for this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of a sentence "the reason for this" is correct and can be used in written English.
For example, "The proposal has been rejected - the reason for this is the lack of evidence to support it."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
the explanation for this
the rationale behind this
the cause of this
the grounds for this
the motive for this
why this happened
the purpose of this
the source of this
the aim of this
what prompted this
the cause for this
the rationale for this
the reasoning for this
the justification for this
the excuse for this
the argument for this
the basis for this
the reasons for this
culpability of this
the origin of this
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
What's the reason for this?
News & Media
The reason for this?
News & Media
The reason for this calamitous situation?
News & Media
The reason for this is fairly straightforward.
News & Media
The reason for this is simple.
News & Media
The reason for this partnership is books.
News & Media
The reason for this is intuitively obvious.
News & Media
But what is the reason for this?
News & Media
The reason for this disparity is clear.
News & Media
The reason for this optimism?
News & Media
The reason for this madness?
News & Media
Expert writing Tips
Best practice
When you are providing a reason, ensure that it directly and logically addresses the issue or statement being explained.
Common error
Avoid using "the reason for this" in casual conversations or informal writing. Simpler alternatives like "that's why" or "because" may sound more natural.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the reason for this" functions as a transitional phrase to introduce an explanation or justification for a preceding statement. It signals that what follows will clarify or provide the cause of something, according to Ludwig AI.
Frequent in
News & Media
44%
Science
37%
Formal & Business
6%
Less common in
Wiki
3%
Academia
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "the reason for this" is a versatile phrase used to introduce explanations across various contexts. Ludwig AI confirms its grammatical correctness and wide usage, as evidenced by its frequent appearance in news, scientific, and business domains. While generally neutral in tone, it tends toward formality, making it suitable for reports and presentations. For more informal settings, simpler alternatives may be preferred. Remember to logically connect your reasons to the statements they explain for clarity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
the explanation for this
Replaces "reason" with "explanation", focusing on clarifying the cause.
the cause of this
Substitutes "reason for" with "cause of", emphasizing the origin of the situation.
the rationale behind this
Replaces "reason for" with "rationale behind", highlighting the logical basis.
the grounds for this
Uses "grounds" instead of "reason", referring to the justification or basis.
the motive for this
Focuses on the underlying motivation or intent behind the action or event.
why this happened
A more direct and concise way to ask for the explanation.
the purpose of this
Shifts the focus to the intended aim or objective.
the source of this
Emphasizes the origin or starting point of the situation.
the aim of this
Highlights the objective or goal that is sought.
what prompted this
Focuses on what initiated or triggered the event.
FAQs
How can I rephrase "the reason for this" to sound more formal?
To achieve a more formal tone, consider using phrases like "the explanation for this", "the rationale behind this", or "the cause of this".
What are some informal alternatives to "the reason for this"?
In less formal settings, you can use simpler expressions such as "that's why", "because", or "the reason is".
Is it grammatically correct to start a sentence with "the reason for this"?
Yes, it is grammatically correct to start a sentence with "the reason for this". However, ensure that the sentence structure is clear and easy to understand.
What is the difference between "the reason for this" and "the reasons for this"?
"The reason for this" is used when referring to a single cause or explanation, while "the reasons for this" is used when referring to multiple causes or explanations.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested