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 challenging for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are challenging for" is correct and usable in written English.
It can be used to describe situations or tasks that present difficulties for someone or something. Example: "These new regulations are challenging for small businesses trying to comply with the law."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
60 human-written examples
All the parts are challenging for director and actors.
News & Media
Seven points more and we are challenging for something.
News & Media
Such observations are challenging for trial design, he says.
Science & Research
Both cases are challenging for standard RANS turbulence models.
The well-conceived programs are challenging for players and audiences alike.
News & Media
HIP ratings are from zero to 100 and are challenging for most large companies.
News & Media
San Miguel's steep, stony streets are challenging for people with bad joints.
News & Media
The Coyotes are challenging for their first playoff spot since 2002.
News & Media
Saturday nights are challenging for employees, especially when the ballroom is in use.
News & Media
We know that mergers and acquisitions are challenging for the companies involved.
News & Media
Powerful flares from blazars with minute- timescale variability are challenging for current models of blazar emission.
Academia
Expert writing Tips
Best practice
When using "are challenging for", ensure the subject is clearly defined. Be specific about what is facing the challenge. For example, instead of saying "The project is challenging", specify "The project is challenging for the team due to tight deadlines."
Common error
Avoid using the phrase "are challenging for" without providing context. Statements like "These tasks are challenging" lack clarity. Instead, specify who or what finds the tasks challenging and why.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are challenging for" functions as a predicate adjective, describing the quality of a subject by indicating that something presents difficulties or obstacles to a specific entity. Ludwig AI examples show its widespread usability in diverse sentences.
Frequent in
Science
39%
News & Media
38%
Formal & Business
23%
Less common in
Ludwig's WRAP-UP
In summary, the phrase "are challenging for" is a grammatically sound and frequently used expression to convey that something presents difficulties. Ludwig AI indicates that it is versatile and appears across various domains, including science, news, and formal writing. When using this phrase, clarity and context are key to avoid overgeneralizations. Alternatives such as "pose a challenge to" or "present difficulties for" can be used to add variety. The register is generally neutral to formal, making it appropriate for professional and informative contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
are difficult for
Uses the adjective "difficult" directly, simplifying the phrase.
present difficulties for
Replaces "challenging" with the more direct "difficulties".
pose a challenge to
Changes the structure to use "challenge" as a noun and "pose" as a verb.
are a struggle for
Highlights the effort involved in overcoming the difficulty.
create problems for
Uses "problems" instead of "challenges", indicating a more negative impact.
are an obstacle to
Positions the subject as a barrier to progress.
are demanding on
Emphasizes the effort or resources required.
are taxing for
Highlights the strain or burden imposed.
complicate matters for
Indicates an increase in complexity.
are a test for
Implies an evaluation or assessment of ability.
FAQs
How can I use "are challenging for" in a sentence?
Use "are challenging for" to describe situations or tasks that present difficulties or obstacles for someone or something. For instance, "The new regulations "are challenging for" small businesses." Consider alternatives like "pose a challenge to" or "are difficult for", depending on the context.
What are some alternatives to "are challenging for"?
Depending on the nuance you want to convey, alternatives to "are challenging for" include "present difficulties for", "create problems for", or "are demanding on".
Which is correct, "are challenging for" or "is challenging for"?
"Are challenging for" is used with plural subjects, while "is challenging for" is used with singular subjects. For example, "These problems are challenging for the team," but "This problem is challenging for the team."
What's the difference between "are challenging for" and "are a challenge for"?
"Are challenging for" describes something that presents difficulties. "Are a challenge for" implies that something requires effort and skill to overcome. For instance, "These tasks are challenging for the new employees," versus "These tasks are a challenge for the new employees".
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested