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
some of these are
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "some of these are" is correct and usable in written English.
You can use it when referring to a subset of items or examples that have been previously mentioned or are being discussed. Example: "Some of these are essential tools for the project, while others are optional."
✓ Grammatically correct
News & Media
Science
Encyclopedias
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
53 human-written examples
Some of these are natural.
News & Media
Some of these are material.
News & Media
Some of these are valuable, some not.
News & Media
Some of these are really good ideas.
News & Media
"Some of these are nice suitcases, though".
News & Media
Some of these are stories of resistance.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
some examples of these are Sudoku.
Wiki
Some of these were pets.
News & Media
Some of these were sensible.
News & Media
Some of these were fraudulent.
News & Media
Some of these were not printable".
News & Media
Expert writing Tips
Best practice
Use "some of these are" to introduce examples or specific instances that illustrate a broader point or category. This helps to provide clarity and detail.
Common error
Avoid using "some of these are" when referring to a very small or insignificant subset, as it can create a misleading impression of importance or prevalence. Ensure the 'some' represents a noteworthy portion.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "some of these are" functions as a quantifying expression. It introduces a statement about a portion of a previously mentioned set, identifying characteristics or conditions specific to that subset. Ludwig provides numerous examples demonstrating this usage across diverse contexts.
Frequent in
News & Media
43%
Science
26%
Encyclopedias
3%
Less common in
Wiki
3%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "some of these are" is a versatile and commonly used phrase to introduce specific characteristics or conditions applying to a subset of a previously mentioned group. As Ludwig confirms, it appears across a range of contexts, particularly in news, scientific, and encyclopedic sources. While grammatically correct and widely applicable, it's essential to ensure clarity by establishing a clear referent for "these" and avoiding overgeneralization. Alternatives such as "a few of these are" or "several of these are" can be used to adjust the indicated quantity. The AI powered Ludwig reaffirms the phrase's overall correctness and utility in English writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a few of these are
Specifies a smaller quantity within the subset.
several of these are
Indicates a moderate number within the subset.
many of these are
Suggests a larger proportion within the subset.
certain of these are
Highlights the presence of specific items with a particular trait.
a number of these are
Implies an unspecified quantity within the subset.
some among these are
Emphasizes the selection from within a defined group.
a portion of these are
Focuses on a fraction or segment within the whole.
not all of these are
Highlights that the entire group does not possess a certain quality.
various of these are
Indicates diversity within the subset.
few of them are
Highlights the limited presence of something within a larger group.
FAQs
How can I use "some of these are" in a sentence?
Use "some of these are" to introduce a selection of items from a previously mentioned group, specifying a characteristic or condition they share. For example, "We reviewed several proposals; "some of these are" particularly promising."
What are some alternatives to "some of these are"?
Depending on the context, consider alternatives like "a few of these are", "several of these are", or "many of these are". Each suggests a different quantity within the group.
Is it always necessary to specify what "these" refers to when using "some of these are"?
Clarity is key. Ensure the referent for "these" is clearly established in the preceding context. Without a clear referent, the sentence can become confusing and lose its intended meaning.
How does the choice of verb tense affect the meaning of sentences using "some of these are"?
The verb tense should align with the timeline of the events being described. Using "some of these were" indicates past events or conditions, while ""some of these are"" refers to present conditions or ongoing characteristics.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested