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
a main reason for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a main reason for" is correct and usable in written English.
It can be used when explaining the primary cause or motivation behind a particular situation or action. Example: "A main reason for the project's success was the team's dedication and hard work."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
a primary factor in
a key reason for
a primary cause of
a key factor in
a significant driver of
a major contributing factor to
a central element of
a core component of
the driving force behind
the primary impetus for
an essential aspect of
a fundamental reason for
a prominent reason for
a major reason for
a primary reason for
a basic reason for
a principal reason for
a great reason for
a substantial reason for
a notable reason for
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
58 human-written examples
A main reason for the enforcement decline is lack of resources.
News & Media
Union leaders cited a fear of privatizations as a main reason for the action.
News & Media
Shedding pension obligations was a main reason for filing for bankruptcy protection, the orchestra has acknowledged.
News & Media
"Of course, his brother was a main reason for his detention," Mr. Ghurab said.
News & Media
A main reason for the disappointing holiday season is that consumers have finally started to save and not spend.
News & Media
A high level of capital spending was a main reason for the economic boom of the late 1990's.
News & Media
Immigrant parents she has encountered generally oppose the idea, seeing educational opportunities in America as a main reason for coming.
News & Media
In Papua New Guinea, three in 10 women cite lack of information as a main reason for not using contraceptives.
News & Media
Retail vacancy rates are up, and your article points to high rents as a main reason for such vacancies.
News & Media
Fear of them has kept people from farming and is a main reason for the food shortages.
News & Media
For example, mothers in community colleges cite a lack of affordable child care as a main reason for dropping out.
News & Media
Expert writing Tips
Best practice
When using "a main reason for", ensure the context clearly establishes what is being reasoned or explained. This phrase is most effective when it directly connects the cause and effect.
Common error
Avoid using "a main reason for" vaguely. Always specify the outcome or situation the reason applies to. For example, instead of saying "a main reason", specify "a main reason for the decline in sales".
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a main reason for" functions as a causal connector, introducing the primary explanation or justification for a particular situation or event. It signals that what follows is the most important cause or motive.
Frequent in
News & Media
45%
Science
45%
Formal & Business
10%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "a main reason for" is a versatile phrase used to introduce the primary cause or justification for a particular situation. Ludwig AI confirms its grammatical correctness and usability across various contexts. It is common in both News & Media and Scientific writing, offering a clear and direct way to express causality. While alternatives exist, "a main reason for" remains a straightforward and reliable choice for explaining the main driver behind events or decisions. Ensure clarity by always specifying the outcome being explained and avoiding vague usage.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a primary cause of
Focuses on the causal aspect, highlighting the phrase as a direct source or origin of an effect.
a key factor in
Emphasizes the importance and influence of the reason within a broader context of contributing elements.
a principal factor of
Similar to "key factor", but with a stronger emphasis on the foundational nature of the reason.
a major contributing factor to
Highlights that the reason significantly adds to the overall outcome or situation.
a significant driver of
Implies that the reason propels or strongly influences a particular trend or development.
a central element of
Focuses on the reason as a core, indispensable part of something.
a core component of
Similar to "central element", but emphasizes the reason's role as a building block or fundamental piece.
the driving force behind
Highlights the reason as the primary power or impetus that motivates or initiates something.
the primary impetus for
Focuses on the reason as the initial motivation or stimulus for an action or event.
an essential aspect of
Underscores the reason's critical importance and necessity for the existence or success of something.
FAQs
How can I use "a main reason for" in a sentence?
Use "a main reason for" to introduce the primary cause or justification behind a particular event, decision, or situation. For example, "A main reason for the company's success was its innovative marketing strategy".
What are some alternatives to "a main reason for"?
Alternatives include phrases like "a primary cause of", "a key factor in", or "a significant driver of", depending on the specific nuance you want to convey.
Is there a difference between "a main reason for" and "the only reason for"?
"A main reason for" indicates one of several possible factors, while "the only reason for" suggests that there are no other contributing causes or justifications. The choice depends on whether multiple factors are at play or a single, definitive cause exists.
Can "a main reason for" be used in both formal and informal contexts?
Yes, "a main reason for" is appropriate in both formal and informal writing. It is a straightforward and widely understood phrase for expressing causality or justification.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested