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
three out of these
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "three out of these" is correct and usable in written English.
It can be used when referring to a selection or subset from a larger group, indicating that you are choosing three items from the mentioned options. Example: "From the list of available projects, I have decided to focus on three out of these that align with my interests."
✓ Grammatically correct
Science
Academia
News & Media
Alternative expressions(1)
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
Three out of these seven mice were also implanted over the post-subiculum (coordinates from bregma: AP: −4.25 mm: ML: −1 to −2 mm; DV: 0.75 mm).
Science & Research
Three out of these 9 patients with removed SGN suffered femoral neck fractures in the early postoperative course after having been mobilized to full weight-bearing capacity.
Science
High concentrations of Sn, Sb, Au, Ag, Ir, and Ni were found to be present in three out of these eight samples.
Science
At 8 00 p.m. on the day of the test, three out of these ten questions are emailed to students, who are then required to submit short-essay responses by 9 00 p.m. by email to their discussion section leaders.
Academia
However, for three out of these five leaf-vertex-labeled trees, one internal vertex may have two different labels, which leads to the final eight different synthesis plans.
Science
An interesting observation is that, in three out of these four isolates, rearrangements were revealed concurrently in futA and futB.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
Two out of these three albums are worth owning.
News & Media
Six out of these seven men were Jewish, or at least of Jewish background.
Four out of these 5 patients had 2 or more risk factors (9.5%).
Five out of these eight patients had headache of >2-years duration.
In nine out of these ten patients, both quantitative kinetic analyses could be obtained.
Science
Expert writing Tips
Best practice
When using "three out of these", ensure the total number of items being referred to is clear from the context. This avoids ambiguity and ensures the reader understands the proportion being discussed.
Common error
Avoid using "three out of these" when the "these" is not clearly defined or immediately preceding the phrase. Make sure the items you're referencing are explicitly stated to prevent confusion.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "three out of these" functions as a quantifying expression. It specifies a particular subset (three) from a larger, identified group ("these"). As Ludwig AI points out, this phrase is grammatically correct and widely used.
Frequent in
Science
78%
Academia
8%
News & Media
6%
Less common in
Formal & Business
4%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "three out of these" is a grammatically sound and frequently employed expression used to indicate a specific quantity taken from a known group. Ludwig AI confirms its correctness and wide applicability. Predominantly found in scientific literature, it's also prevalent in academic and news-related contexts. While versatile, clarity is key: ensure the referent of "these" is always unambiguous. Alternatives like "three from these" offer concision, though "three out of these" provides a slightly more explicit sense of selection. When in doubt, spelling out "three" is advisable for formal writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
three among these
This alternative is nearly synonymous, simply replacing "out of" with "among".
three from these
This alternative is more concise and directly indicates a selection from a group.
three from this set
This alternative replaces "these" with "this set", indicating a collection.
three selected from these
This alternative emphasizes the act of selection, adding the word "selected".
three in this group
This alternative specifies the group more explicitly, replacing "these" with "this group".
a trio of these
This alternative uses "trio" to specify the quantity and offers a slightly more formal tone.
three specimens from this collection
This alternative adds detail by specifying "specimens" and "collection", implying a formal arrangement.
three of the aforementioned
This alternative refers to items previously mentioned, using a more formal tone.
a few of these
This alternative is less precise, replacing "three" with the less specific "a few".
some of these
This alternative is similar to "a few of these" but even more general.
FAQs
How can I rephrase "three out of these" to sound more formal?
You could use phrases like "a trio of these" or "three of the aforementioned", depending on the context and the desired level of formality.
Is it correct to say "3 out of these" instead of "three out of these" in formal writing?
While using numerals (3) is acceptable in some contexts, spelling out the number as "three" is generally preferred in formal writing. It maintains a higher level of elegance and readability.
What's the difference between "three out of these" and "three from these"?
The phrase "three from these" is a more concise alternative to "three out of these", but they are largely interchangeable. The latter might provide a slightly more explicit sense of selection, but the difference is subtle.
Can I use "three out of these" to refer to abstract concepts, or is it only for physical objects?
You can use "three out of these" for both abstract concepts and physical objects. For instance, "Three out of these considerations are crucial" is perfectly acceptable.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested