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
mainly in part
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mainly in part" is not correct and is redundant in written English.
You can use it when trying to express that something is primarily true but only to a certain extent, although it is better to choose a clearer expression. Example: "The project's success was mainly in part due to the team's hard work and dedication."
⚠ May contain grammatical issues
News & Media
Science
Alternative expressions(18)
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
2 human-written examples
Despite all the hardships that occurred this past week on Koh Tao, we still managed to thoroughly enjoy our time here, mainly in part because of our thrilling scuba diving experience.
News & Media
Several attempts to introduce floral scent have been made using genetic engineering; such efforts have achieved partial success, mainly in part due to the absence of key enzymes or precursors that are required for the biosynthesis of the final biochemical compound.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Historically, they ranged across much of Europe, Asia, and Africa, but now they are found mainly in parts of Africa south of the Sahara.
Encyclopedias
FGM is found mainly in parts of Africa and the Middle East and the World Health Organisation estimates between 100 and 140 million women worldwide have been subjected to at least one of the first three steps of female genital mutilation.
News & Media
Among older job seeking men, this might be due to the fact that the increase in employment among men during 2002 2010 occurred mainly in part-time jobs (Bank of Israel 2011).
They will be established in areas of England that have been hit hard by the economic downturn - mainly in parts of the Midlands and the North.
News & Media
Bulls may also have a series of vertical white stripes on their sides (mainly in parts of the Karoo in South Africa).
Wiki
The parasites are found mainly in parts of Southeast Asia, China and South Korea, where residents and tourists alike risk infection from specific types of freshwater fish, such as tilapia and carp.
News & Media
Pressure ulcers are known as bed scores and decubitus ulcers and occur mainly in parts of the body that are subject to high pressure from body weight on bony prominences [ 1]; thus they have been defined as "an area of unrelieved pressure usually over a bony prominence leading to ischemia, cell death, and tissue necrosis" [ 2].
Each contribution was considered to act mainly in one part of the z-scan through a Heaviside Step function.
Massive corals and E. acoroides (see below) are mainly in region 2 and south parts of regions 4 and 5. Branching corals are mainly in south part of region 3.
Science
Expert writing Tips
Best practice
Avoid using the phrase "mainly in part" in your writing. Opt for clearer and more grammatically sound alternatives such as "largely due to" or "primarily because of".
Common error
Don't use "mainly in part" when you can express the same idea more concisely. Redundant phrasing weakens your writing and makes it less impactful.
Source & Trust
80%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mainly in part" functions as an adverbial modifier, attempting to qualify the extent to which a statement is true. However, this usage is considered grammatically incorrect and redundant, as highlighted by Ludwig.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "mainly in part" is considered grammatically incorrect and redundant. While it aims to express that something is primarily true but only to a certain degree, Ludwig recommends avoiding it in favor of clearer alternatives such as "largely due to" or "primarily because of". Ludwig AI indicates that it's better to choose a clearer expression because redundant phrasing weakens your writing. Although examples exist in both news and scientific sources, these instances do not validate its use, and more precise language is always preferable.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
largely due to
Emphasizes the significant contribution of a particular factor.
primarily because of
Highlights the main reason or cause.
mostly attributable to
Indicates that something can be chiefly assigned or credited to a specific cause.
chiefly resulting from
Points to the principal outcome or consequence.
significantly influenced by
Highlights the notable impact of a factor.
partially a consequence of
Acknowledges that something is partly the result of something else.
in some measure owing to
Suggests that something is due to a particular reason, though not entirely.
to a considerable extent
Indicates a substantial degree or proportion.
predominantly as a result of
Stresses the most important outcome or effect.
substantially dependent on
Highlights the significant reliance on something.
FAQs
Is "mainly in part" grammatically correct?
No, the phrase "mainly in part" is grammatically incorrect and considered redundant. It's better to use phrases like "largely due to" or "primarily because of".
What does "mainly in part" mean?
The phrase attempts to convey that something is primarily true but only to a certain extent. However, it's not a standard or grammatically sound expression. Use a more precise phrase instead, such as "mostly attributable to".
How can I rephrase a sentence that uses "mainly in part"?
Replace "mainly in part" with alternatives like "significantly influenced by" or "to a considerable extent" to ensure clarity and grammatical correctness. For example, instead of "The success was mainly in part due to hard work", say "The success was largely due to hard work."
Are there situations where "mainly in part" is acceptable?
While you might encounter "mainly in part" in some contexts, it's generally not recommended due to its redundancy and lack of grammatical precision. It's better to use clearer and more accepted alternatives, such as "partially a consequence of".
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
80%
Authority and reliability
2.5/5
Expert rating
Real-world application tested