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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
difficult to understand between
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "difficult to understand between" is not correct and does not convey a clear meaning in written English.
It may be intended to express confusion or complexity in understanding something that involves multiple parties or concepts, but it lacks clarity. Example: "The instructions were difficult to understand between the various technical terms used."
⚠ May contain grammatical issues
News & Media
Science
Academia
Alternative expressions(20)
difficult to understand
was difficult to understand
it was difficult to understand
it is difficult to understand
is difficult to understand
too difficult to understand
I find it difficult to understand
understand how difficult
a difficult line between
quite difficult to understand
difficult to translate between
difficult to interpret between
difficult to decipher between
finding it difficult to understand that
difficult to decide between
often difficult to understand
difficult to discern between
also difficult to understand
difficult to resolve between
I can understand how difficult
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
1 human-written examples
For all the charges that the Constitution was difficult to understand, between 1789 and 1860 only one state, California, required that it be taught in school.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Few studies conducted in developing countries focused on CAMHP protective factors, making it difficult to understand differences between countries.
Science
Event-based models, however, are fragmented, which makes it difficult to understand the dependencies between components.
Science
It was also difficult to understand Thomas' struggle between Teresa and Brenda at some points because it was not explored very deeply.
News & Media
Afterward, Mills told me that "middle-schoolers find it surprisingly difficult to understand the correlation between a numerical value and a physical movement".
News & Media
"For your average fisherman, who feels very insignificant in front of God, they are finding it difficult to understand the connection between climate change and human activity," he told me.
News & Media
However, our knowledge of the generation of electric fields in these configurations still remains incomplete, and this makes it difficult to understand the relationship between magnetic reconnection and the acceleration of energetic particles.
Science
Unfortunately, because the terms ethnicity and nation both evoke multiple meanings, it is difficult to understand the relationship between these two categories.
Academia
It is important, yet difficult to understand the relationship between the structure of chemical compounds, their physico-chemical properties, and biological or toxic effects.
Science
It is quite difficult to understand the relationship between macro-parameters and micro-parameters in different cases of micro-parameters' variation.
This would require mathematical optimization algorithms, e.g. in form of linear programming [120] which in turn makes it much more difficult to understand the relation between scenario settings and optimization results.
Expert writing Tips
Best practice
When describing a lack of understanding, clarify what specific aspect is unclear. Instead of using the phrase "difficult to understand between", use more precise language like "difficult to differentiate between X and Y".
Common error
Avoid using "between" when you intend to describe a general lack of understanding. "Between" is used to compare two or more distinct items, so if you simply mean something is generally hard to understand, omit "between" and rephrase. For example, use "The concept is difficult to understand" rather than "The concept is difficult to understand between."
Source & Trust
84%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "difficult to understand between" is generally used to express a challenge in comprehending the relationship or differences between two or more things. However, as Ludwig AI highlights, the construction is often grammatically incorrect and unclear. The better formulation depends on the intended meaning.
Frequent in
Science
48%
News & Media
44%
Academia
8%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "difficult to understand between" is generally considered grammatically incorrect and lacks clarity, as supported by Ludwig AI. While its intended purpose is to express a challenge in comprehending relationships or differences, it's best to use more precise and grammatically sound alternatives like "difficult to differentiate between" or "hard to grasp the relationship between". The phrase appears in a mix of science, news, and academic contexts, but its incorrectness suggests avoiding it in formal writing. Clarifying the specific aspect that's hard to understand will always lead to more effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
difficult to differentiate between
Focuses specifically on the difficulty in distinguishing one thing from another.
difficult to comprehend the distinction between
Focuses on the challenge of understanding differences, replacing a general 'understand between' with a more specific 'comprehend the distinction'.
hard to understand the difference among
Similar to 'difficult to understand the distinction', but replaces 'distinction' with 'difference' and 'between' with 'among'.
hard to grasp the relationship between
Replaces "difficult to understand" with "hard to grasp", emphasizing the challenge of understanding a connection.
challenging to understand the link between
Replaces "difficult" with "challenging" and focuses on understanding a "link" instead of a general understanding.
challenging to discern the connection between
Uses "challenging to discern" instead of "difficult to understand", highlighting the effort needed to identify a connection.
not easy to see the correlation between
Emphasizes the lack of ease in seeing a correlation or relationship.
not easy to perceive the contrast between
Rephrases the difficulty as "not easy to perceive", focusing on noticing a difference.
difficult to appreciate the nuances between
Highlights the difficulty in understanding subtle differences or nuances.
hard to reconcile the discrepancies between
Focuses on the difficulty of resolving inconsistencies or differences.
FAQs
How can I properly use "difficult to understand" in a sentence?
To use "difficult to understand" correctly, ensure the sentence clearly indicates what is challenging to comprehend. For example, "The instructions were difficult to understand." If you are comparing items, use "difficult to differentiate between", as in, "It's difficult to differentiate "difficult to differentiate between" the two approaches".
What are some alternatives to the incorrect phrase "difficult to understand between"?
Instead of "difficult to understand between", consider using phrases like "difficult to differentiate between", "hard to grasp the relationship between", or "challenging to discern the connection between". These options provide more clarity and grammatical accuracy.
How do I use 'difficult to differentiate between' correctly?
Use "difficult to differentiate between" when highlighting the challenge of distinguishing two or more distinct items. For instance, "It is difficult to differentiate "difficult to differentiate between" cause and effect in this scenario."
What makes "difficult to understand between" grammatically incorrect?
The phrase "difficult to understand between" lacks grammatical precision. "Between" implies a comparison or distinction, so using "difficult to understand" in conjunction is vague and doesn't specify what's being compared or why it's hard to understand. It's better to specify what relationship or distinction is "hard to grasp the relationship between".
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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
84%
Authority and reliability
2.5/5
Expert rating
Real-world application tested