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
be classified into
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be classified into" is correct and usable in written English.
You can use it to refer to organizing things into distinct categories or types. For example, "The different species of birds can be classified into several distinct groups."
✓ Grammatically correct
Science
Encyclopedias
Wiki
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
Dermatitis may be classified into several types.
Encyclopedias
Manufacturing industries can be classified into two main categories.
Encyclopedias
Freedman's Chinese studies can be classified into four phases.
Encyclopedias
Stations may be classified into several types.
Variables will be classified into four clusters.
Triptan can be classified into two types.
The core technology can be classified into two categories: (1).
These algorithms can be classified into three different groups.
Science
Data structures may be classified into linear and nonlinear types.
Amplifiers can be classified into two categories: linear and nonlinear.
These methods can be classified into two main categories.
Expert writing Tips
Best practice
When using "be classified into", ensure the categories you are classifying into are clearly defined and mutually exclusive to avoid ambiguity.
Common error
Avoid using "be classified into" when the categories are not mutually exclusive. This can lead to confusion and misinterpretation. Instead, consider using descriptive language that allows for overlap, or refine your categories.
Source & Trust
77%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be classified into" functions as a passive voice construction used to describe the act of categorizing or sorting items into distinct groups based on shared characteristics or criteria. As Ludwig AI confirms, this is a valid and frequently used phrase.
Frequent in
Science
76%
Encyclopedias
7%
Wiki
3%
Less common in
Formal & Business
0%
News & Media
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "be classified into" is a versatile phrase for expressing categorization, predominantly used in formal and scientific contexts. As Ludwig AI highlights, this phrase is grammatically correct and widely accepted. Its frequent occurrence in scientific journals and encyclopedias underscores its role in providing structured organization to complex topics. When employing "be classified into", ensure clear and mutually exclusive categories to avoid confusion. Consider alternatives like "be categorized as" or "be grouped under" for nuanced expression. This comprehensive analysis equips writers with the insights to effectively use "be classified into" in various contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
be categorized as
Focuses on the act of assigning something to a specific category.
be grouped under
Implies a hierarchical structure where items are placed under a broader group.
fall into the category of
More descriptive, emphasizing the act of belonging to a category.
be divided into
Emphasizes the act of splitting a whole into distinct parts.
be sorted into
Implies a systematic arrangement of items based on criteria.
be placed in the class of
More formal and technical, suitable for academic or scientific contexts.
be indexed under
Suggests organization within an index or database.
be cataloged as
Refers to the creation of a catalog record for an item.
be assigned to the type of
Highlights the assignment of a specific classification or type.
be considered as part of
Implies inclusion within a larger grouping or system.
FAQs
How can I use "be classified into" in a sentence?
You can use "be classified into" to categorize items based on shared characteristics. For example, "These books can "be classified into" fiction and nonfiction genres."
What are some alternatives to "be classified into"?
Some alternatives include "be categorized as", "be grouped under", or "fall into the category of", depending on the specific nuance you want to convey.
Is it correct to say "are classified into" instead of "be classified into"?
Yes, "are classified into" is correct when referring to multiple items. "Be classified into" is often used in more general statements or titles while "are classified into" is for plurals.
What's the difference between "be classified into" and "be divided into"?
"Be classified into" implies sorting items based on shared traits, while "be divided into" suggests splitting a whole into parts. For example, a library's books might "be classified into" genres, but a cake might "be divided into" slices.
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
77%
Authority and reliability
4.5/5
Expert rating
Real-world application tested