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
it has been challenging
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it has been challenging" is correct and usable in written English.
You can use it to describe a situation or experience that has posed difficulties or obstacles over a period of time. Example: "This project has been challenging, but we are making progress and learning along the way."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
It has always been a challenge
it has been uphill
it has been robust
it has never been easier
it has not proved easy
It has historically been tough
it has been problematic
it has been encouraging
it has been difficult
it has not been universal
it has not been transparent
it has not been evident
it has been painful
it has been formidable
it has never been cheap
it has been a struggle
It has consistently been difficult
it has been intensive
it has been ruthless
It has not been easy
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
To perform this activity, an enzyme can change its structure several times, but it has been challenging to characterise the intermediate shapes because of their transient nature.
Science
Consequently, it has been challenging to characterize its etiology and to identify a single treatment that addresses all of its manifestations.
But it has been challenging.
News & Media
"It has been challenging this past year," she said dryly.
News & Media
It has been challenging to be around Mom since my father died.
News & Media
She acknowledged that it has been challenging to use a prepared text.
News & Media
11.49pm BST Alex Rodriguez speaks There's nothihg about it that's been easy, all of it has been challenging.
News & Media
Brian Jennings, the N.H.L.'s executive vice president for marketing, acknowledges that it has been challenging to promote players who choose to stay out of the spotlight.
News & Media
"It has been challenging for end users to purchase properties as they have to compete with investors," said Mr. Roth, who works for Keyes Realtors.
News & Media
However, it has been challenging to test this hypothesis in human cerebral cortex.
It has been challenging to accurately estimate cooling load in a building in real-time.
Science
Expert writing Tips
Best practice
Use "it has been challenging" when you want to acknowledge difficulties faced over a period, while also implying resilience or ongoing effort. For stronger impact, follow it with specific examples of the challenges encountered.
Common error
Avoid using "it has been challenging" as a vague statement. Always provide context or specific examples to illustrate the nature and impact of the challenges.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it has been challenging" functions as a descriptive statement, indicating that a particular task, situation, or period has presented difficulties or obstacles. As Ludwig AI confirms, this phrase is grammatically correct and widely used.
Frequent in
Science
44%
News & Media
42%
Formal & Business
14%
Less common in
Ludwig's WRAP-UP
In summary, "it has been challenging" is a versatile phrase used to describe situations marked by difficulty over time. As confirmed by Ludwig AI, it's grammatically sound and frequently appears in diverse contexts like science, news, and business. While "it has been difficult" and "it has been tough" offer similar meanings, it's important to use specific examples to avoid vagueness and strengthen the impact of your statement. This phrase effectively conveys acknowledgment of difficulty alongside resilience, making it valuable in various forms of communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it has been difficult
Focuses more directly on the difficulty of the situation.
it has been tough
Emphasizes the demanding nature of the situation.
it has been demanding
Highlights the high effort required.
it has been arduous
Suggests a particularly laborious or taxing experience.
it has been trying
Indicates a situation that tests one's patience or endurance.
it has been problematic
Focuses on the existence of problems or issues.
it has been complicated
Indicates complexity and difficulty in understanding or resolving something.
it has been taxing
Highlights the draining effect of the situation.
it has been strenuous
Emphasizes the physical or mental effort involved.
it has been formidable
Suggests the presence of a significant challenge or obstacle.
FAQs
How can I use "it has been challenging" in a sentence?
Use "it has been challenging" to describe a situation or period marked by difficulties. For example, "Launching this new product "it has been challenging" due to supply chain disruptions."
What can I say instead of "it has been challenging"?
You can use alternatives like "it has been difficult", "it has been tough", or "it has been demanding" depending on the specific nuance you want to convey.
Is "it has been challenge" grammatically correct?
No, "it has been challenge" is grammatically incorrect. The correct form is ""it has been challenging"", using the present participle of the verb "challenge".
What's the difference between "it is challenging" and "it has been challenging"?
"It is challenging" describes a difficulty that is currently present. "It has been challenging" describes difficulties experienced over a period of time, implying that the challenges may still persist or have recently concluded.
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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested