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
are believed to function
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are believed to function" is correct and usable in written English.
It can be used when discussing theories, hypotheses, or beliefs about how something operates or works. Example: "These ancient structures are believed to function as astronomical observatories, aligning with celestial events."
✓ Grammatically correct
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
56 human-written examples
These structures are believed to function as the new third route for the Sn diffusion.
Science
Furanocoumarins are believed to function as phytoalexin (Beier and Oertli 1983) or allelochemical compound (Baskin et al. 1967).
Science
Human β-defensins (hBDs) are believed to function as alarm molecules that stimulate the adaptive immune system when a threat is present.
Science
In plants, the LEA genes are believed to function in protecting cellular components during developmentally induced desiccation in embryos and during water deficit stress in vegetative tissue [9].
Science
Amelogenin proteins, the principal components of the developing dental enamel matrix, self-assemble to form nanosphere structures that are believed to function as structural components directly involved in the matrix mediated enamel biomineralization.
Science
In fact, Rho GTPases such as ROP1 and interacting protein RIC3 are believed to function as spatial regulators of ABPs including F-actin, profilin and formin and thus help determine growth polarity (Chebli et al. 2013; Cheung et al. 2010).
Science
The proteins of the ABC transporter family are believed to function as drug efflux pumps and increased levels of these proteins in CSCs could therefore be contributing to the protection of CSCs from cytotoxic chemotherapy [30]-[33] [30]-[33]
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
Epidermal Langerhans cells (LCs) have been believed to function as professional antigen-presenting cells (APCs).
In both cases, the peptides were believed to function as both the reducing and protection agents.
Science
The protein XRCC1 has no inherent enzymatic activity, and is believed to function in base excision repair as a dedicated scaffold component that coordinates other DNA repair factors.
Science
The tumor suppressor p14ARF is widely deregulated in many types of cancers and is believed to function as a failsafe mechanism, inhibiting proliferation and inducing apoptosis as cellular response to a high oncogene load.
Science
Expert writing Tips
Best practice
When using "are believed to function", ensure the context clearly indicates who holds the belief. If the belief is widely accepted, it may be better to use stronger language like "are known to function."
Common error
Avoid using "are believed to function" excessively, as it can create a passive and potentially vague tone. Consider rephrasing to a more direct and active voice when possible, such as "scientists believe X functions as Y".
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are believed to function" primarily serves as a qualifier, indicating that the described function is based on a belief or assumption rather than a definitively proven fact. It's often used in scientific and academic contexts, as demonstrated by Ludwig.
Frequent in
Science
98%
News & Media
1%
Formal & Business
1%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "are believed to function" is grammatically correct and commonly used, especially in scientific and academic writing. As noted by Ludwig, it is used to express an understanding or assumption about the role or operation of something, implying that this understanding is based on current knowledge but not necessarily definitively proven. While alternatives such as "are thought to function" or "are considered to function" exist, they carry slightly different connotations. When using this phrase, it's important to be aware of the potential for passive voice and to clearly indicate whose belief is being referenced. Over all "are believed to function" is a correct and usable sentence.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are thought to function
Replaces "believed" with "thought", suggesting a slightly less formal tone but maintaining the same meaning.
are considered to function
Substitutes "believed" with "considered", indicating a more formal or official assessment of functionality.
are understood to function
Uses "understood" instead of "believed", implying a general comprehension of the function.
are presumed to function
Replaces "believed" with "presumed", suggesting a tentative assumption about the function.
are expected to function
Changes "believed" to "expected", indicating an anticipation of the function based on certain criteria.
are known to function
Shifts from "believed" to "known", implying a confirmed or established function.
are designed to function
Focuses on the design aspect, suggesting that the function is intentional and planned.
are intended to function
Similar to "designed", but emphasizes the purpose or aim of the function.
are reported to function
Highlights that the function is based on reports or findings, possibly implying less certainty.
are suggested to function
Uses "suggested" instead of "believed", indicating a hypothesis or proposition about the function.
FAQs
How can I use "are believed to function" in a sentence?
The phrase "are believed to function" is used to describe something whose role or operation is based on an assumption or widely held theory. For example, "These structures are believed to function as ancient astronomical observatories."
What can I say instead of "are believed to function"?
You can use alternatives like "are thought to function", "are considered to function", or "are understood to function" depending on the specific context.
Is it better to use "are believed to function" or "are known to function"?
The choice depends on the certainty of the information. Use "are believed to function" when describing a belief or theory. Use "are known to function" when describing an established fact.
What is the difference between "are believed to function" and "are expected to function"?
"Are believed to function" implies a current understanding or assumption about something's role. "Are expected to function" suggests an anticipation of future performance or operation based on certain criteria.
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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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested