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
is sometimes due to
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is sometimes due to" is correct and usable in written English.
It can be used to indicate that something occurs occasionally as a result of a specific cause or reason. Example: "The increase in traffic congestion is sometimes due to road construction projects that limit available lanes."
✓ Grammatically correct
Science
News & Media
Encyclopedias
Alternative expressions(3)
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
13 human-written examples
Pain in the eyes is sometimes due to neuritis of the optic nerves, but it is usually caused by ocular disease.
Encyclopedias
"This price increase, it is sometimes due to contractor's deliberate acts, and sometimes it is due to the fact that the professional valuation of necessary investments, especially in mountain conditions, for a mountain cluster, are not efficient enough".
News & Media
The existence, however limited, of such shows is sometimes due to private collectors – Bob Monkhouse recorded several editions of The Golden Shot and Celebrity Squares – and to a studio chiefs wishing to create a sales reel for potential overseas markets.
News & Media
Economists' opposition to specific minimum-wage hikes is sometimes due to concerns that politicians will impose recklessly high wage-floors, which firms may find difficult to absorb without laying people off.
News & Media
The misbehaviour is sometimes due to signal loss because nodes leave or enter in the network very frequently.
It is noticed that the decrease in electron density is sometimes due to an increase in the molecular nitrogen density N2 and not always is attributed both to the increase in N2 density and the simultaneous decrease in the atomic oxygen density.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
But as top technology CEOs like Marc Benioff of Salesforce and Brian Krzanich of Intel have discovered, sometimes to their astonishment, it's sometimes due to internal pay policies.
News & Media
This paper examines type infeasibility of call chains, which may be caused by inherently polymorphic call sites and are sometimes due to imprecision in call graphs.
In the latter case, this was sometimes due to a major discovery in the field that led to the previous year's materials being outdated.
Errors are sometimes due to naiveté; at other times the misuse is intentional.
News & Media
The high turnover rates are sometimes due to layoffs, "but the primary reason they leave is because they're dissatisfied," said Richard Ingersoll, an education professor at the University of Pennsylvania whose research on teacher retention was published in the report.
News & Media
Expert writing Tips
Best practice
Use "is sometimes due to" when you want to indicate that a specific cause is not the only reason for something, but it contributes to it on occasion. This helps to avoid oversimplification and acknowledges the complexity of the situation.
Common error
Avoid using "is sometimes due to" when a more definitive causal relationship exists. If the cause is consistent and direct, opt for stronger phrases like "is caused by" or "is a result of" to maintain accuracy and avoid understating the connection.
Source & Trust
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is sometimes due to" functions as a causal connector, linking an effect to one of its potential causes. As shown by Ludwig, it suggests that the cause is not the only factor at play, but contributes to the outcome on occasion. This aligns with Ludwig AI which states that the phrase is correct and usable in written English.
Frequent in
Science
52%
News & Media
36%
Encyclopedias
4%
Less common in
Wiki
4%
Formal & Business
4%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "is sometimes due to" is a grammatically sound and commonly used causal connector. As Ludwig AI confirms, it's appropriate when indicating a partial or occasional cause. It appears frequently in scientific and news-related contexts, and less so in more informal settings. Remember to avoid overstating causality when using this phrase; it's best reserved for situations where multiple factors contribute to an outcome. Alternatives like "is occasionally caused by" or "is partly attributable to" can offer similar meanings with slight variations in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is occasionally caused by
Emphasizes the infrequency of the cause.
is partly attributable to
Highlights that the mentioned factor is only one of several contributing factors.
is in part the result of
Focuses on the outcome being a consequence of something.
can be attributed in part to
More formal and cautious in assigning causality.
is sometimes a consequence of
Highlights the cause-and-effect relationship.
is on occasion linked to
Suggests a correlation rather than a direct causation.
is intermittently caused by
Emphasizes the sporadic nature of the cause.
is now and then due to
Informal way of expressing occasional causation.
occasionally stems from
Implies that the cause is a root or origin of the effect.
is intermittently the product of
Highlights that the result happens periodically.
FAQs
What does "is sometimes due to" mean?
The phrase "is sometimes due to" means that something happens occasionally as a result of a particular cause, but that cause is not always responsible. It suggests a partial or intermittent causal relationship.
How can I use "is sometimes due to" in a sentence?
You can use "is sometimes due to" to explain that a factor contributes to a situation without being the sole cause. For example, "The increase in traffic congestion "is sometimes due to" road construction projects".
What can I say instead of "is sometimes due to"?
You can use alternatives like "is occasionally caused by", "is partly attributable to", or "can be attributed in part to" depending on the specific nuance you want to convey.
What's the difference between "is sometimes due to" and "is always due to"?
"Is sometimes due to" indicates an occasional cause, while "is always due to" indicates a consistent and direct cause. The former acknowledges that other factors may also contribute, while the latter implies a singular cause.
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
82%
Authority and reliability
4.3/5
Expert rating
Real-world application tested