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
forms a substantial part
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "forms a substantial part" is correct and usable in written English.
It can be used to indicate that something constitutes a significant or important portion of a whole. Example: "The research findings form a substantial part of the overall conclusions drawn in the study."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Wiki
Alternative expressions(20)
plays a key role
accounts for a large majority
accounts for a large proportion
instrumental
essential for
critical to
major factor
vital for
fundamental to
is vital for
is critical to
is essential for
is crucial in
is central to
is fundamental to
is instrumental
is paramount
is a major factor
is significant in
plays a fundamental role
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
4 human-written examples
The most recent discovery of its footage (in the UK in 2006) unearthed a seven-minute single-take sequence that forms a substantial part of what remains, which amounts to a little under 20 minutes.
News & Media
Because of its abundance, the blackmouth catshark forms a substantial part of the bycatch of deepwater commercial fisheries across much of its range.
Wiki
Oseltamivir is a prime option for influenza treatment and prophylaxis and forms a substantial part of pandemic preparedness in many countries.
Science
Besides regular teaching, nursing care forms a substantial part of the work content of teachers and educational staff at special schools with severely and multiple handicapped children.
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Such tales are of ancient origin and form a substantial part of the body of folk literature.
Encyclopedias
The fact that the movie's real-life subject wrote a book about the experience, then formed a substantial part of the film's promotional campaign, might tip you off a little.
News & Media
It was an evisceration at times on the Spanish east coast and though the England injury toll must form a substantial part of the consideration, the game told us that we must wait longer than next summer for a maturing of the great young talents at the nation's disposal.
News & Media
One type of earning that is not explained by the neoclassical theory of distribution is profit, a circumstance that is especially awkward because profits form a substantial part of national income (20 25 percent); they are an important incentive to production and risk taking as well as being an important source of funds for investment.
Encyclopedias
The reserves of non-conventional oils, such as heavy oil and bitumen, form a substantial part of the known global petroleum resources (IEA 2014; CAPP 2014).
Science
The higher and persistent incidence of mismatch amongst immigrants is a potential problem for countries where foreigners form a substantial part of the labour force and where employment growth is mainly driven by immigration, as in Australia.
Science
There follow ten letters that provide helpful comments upon topics in the above four treatises, especially letter 9 on what Dionysius calls symbolic theology of which works 2) and 3) above (CH; EH) form a substantial part.
Science
Expert writing Tips
Best practice
When using "forms a substantial part", ensure the context clearly indicates what larger entity the subject is a part of. This provides clarity and strengthens the sentence.
Common error
Avoid using "forms a substantial part" if the element only contributes a minor or negligible amount. Using it in such cases can mislead the reader and weaken your argument.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "forms a substantial part" functions as a predicate in a sentence, indicating that the subject constitutes a significant portion of something. As Ludwig AI indicates, the phrase is grammatically correct. Examples in Ludwig demonstrate its usage across various domains.
Frequent in
Science
42%
News & Media
29%
Encyclopedias
12%
Less common in
Wiki
17%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "forms a substantial part" is a grammatically sound expression used to convey that something constitutes a significant portion of a larger whole. Ludwig AI confirms its correct usage, supported by examples from diverse sources including science, news, encyclopedias and wiki. While found in a variety of contexts, its use should be reserved for situations where the component genuinely represents a considerable portion, avoiding overstatement. Alternatives like "constitutes a significant portion" or "makes up a considerable portion" can be used for variety, but the core meaning remains consistent.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
constitutes a significant portion
Changes the verb to 'constitutes' and uses 'significant' instead of 'substantial'.
makes up a considerable portion
Uses 'makes up' as a verb phrase and 'considerable' as a synonym for 'substantial'.
represents a major share
Employs 'represents' and 'major share' to convey the idea of a significant part.
comprises a large segment
Replaces 'forms' with 'comprises' and 'substantial part' with 'large segment'.
accounts for a notable fraction
Uses 'accounts for' and 'notable fraction' to indicate a significant portion.
is a significant component
Focuses on the 'component' aspect, highlighting its importance.
plays a key role
Shifts the focus to the importance of the part rather than its size.
is an integral element
Emphasizes the essential nature of the part.
figures prominently
Highlights the importance and visibility of the part.
holds a dominant position
Suggests the part is not only large but also influential.
FAQs
How can I use "forms a substantial part" in a sentence?
Use "forms a substantial part" to indicate that something constitutes a significant portion or element of a larger whole. For example, "The funding from donors "forms a substantial part" of the organization's budget."
What can I say instead of "forms a substantial part"?
You can use alternatives like "constitutes a significant portion", "makes up a considerable portion", or "represents a major share" depending on the context.
Is it correct to say "formed a substantial part"?
Yes, "formed a substantial part" is the past tense of the phrase and is grammatically correct when referring to something that used to be a significant portion but may no longer be. For example, "Historically, agriculture "formed a substantial part" of the country's economy."
What's the difference between "forms a substantial part" and "is a substantial part"?
"Forms a substantial part" implies a process of becoming or contributing to a larger whole, while "is a substantial part" indicates a current state of being a significant component. The choice depends on whether you want to emphasize the action of forming or the state of being.
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