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
that is the problem
Grammar usage guide and real-world examplesUSAGE SUMMARY
"that is the problem" is a grammatically correct expression that can be used in written and spoken English.
You can use it when you want to refer to a difficulty or a difficulty that someone is having with something. For example: "I've been trying to fix my computer all morning, but I can't figure out what's wrong - that is the problem."
✓ Grammatically correct
News & Media
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
60 human-written examples
With biodegradable objects, it is disposal that is the problem.
News & Media
It is public credulity that is the problem, not scepticism.
News & Media
It is not the brand that is the problem.
News & Media
Don't think it's our confidence that is the problem.
News & Media
"[But] it's the uncertainty that is the problem.
News & Media
It is the Bush administration that is the problem.
News & Media
It is that seventh day that is the problem.
News & Media
"It is the residue that is the problem.
News & Media
"It is the rhetoric that is the problem," he said.
News & Media
No-one - that is the problem.
News & Media
That is the problem".
News & Media
Expert writing Tips
Best practice
Use "that is the problem" to clearly and concisely identify the central issue in a discussion or analysis. It provides a direct way to focus attention on what needs to be addressed.
Common error
Avoid using "that is the problem" as a simplistic conclusion to complex arguments. Ensure you've adequately explained the context and nuances before stating the problem directly.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is the problem" serves as a declarative statement, functioning primarily to identify or highlight a specific issue or difficulty that has been previously discussed or implied. Ludwig examples show its use in clarifying the core of a challenge.
Frequent in
News & Media
100%
Less common in
Formal & Business
0%
Science
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "that is the problem" is a grammatically correct and commonly used phrase to identify a key issue or difficulty. Ludwig AI confirms its appropriateness in various contexts, particularly in news and media. While versatile, it's important to ensure sufficient context is provided before using the phrase to avoid oversimplifying complex arguments. Consider alternatives like "that's the challenge" or "that's the difficulty" to add nuance where necessary.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that's the challenge
Replaces "problem" with "challenge", framing the issue as something to be overcome.
that's the difficulty
Substitutes "problem" with "difficulty", emphasizing the troublesome aspect.
that's the key issue
Highlights the identified problem as the most important point of concern.
that's where the trouble lies
Uses a more figurative expression to point out the source of difficulty.
that's the crux of the matter
Emphasizes that the identified problem is the central point of the situation.
the heart of the matter is that
Emphasizes the core issue in a more elaborate way.
that's what's causing the issue
Focuses on the problem as the direct cause of a specific issue.
the fundamental flaw is
Identifies the problem as a basic defect or weakness.
the root cause is
Points to the underlying cause of the difficulties.
the main obstacle is
Presents the problem as a barrier preventing progress.
FAQs
How can I rephrase "that is the problem"?
You can use alternatives such as "that's the challenge", "that's the difficulty", or "that's the key issue" depending on the context.
Is "that is the problem" formal or informal?
The phrase "that is the problem" is suitable for both formal and informal contexts. However, in highly formal settings, you might opt for a more sophisticated phrasing.
What's the difference between "that is the problem" and "that's a problem"?
"That is the problem" identifies a specific, pre-defined issue, while "that's a problem" introduces a new issue or expresses concern about something.
How to use "that is the problem" effectively in a sentence?
Use "that is the problem" after you've provided enough context to make the issue clear to your audience. For instance, "We lack the necessary resources; "that is the problem"".
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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested