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
these kinds of
Grammar usage guide and real-world examplesUSAGE SUMMARY
"these kinds of" is correct and usable in written English.
You can use it to refer to a certain type of thing, usually a group or set of things that are similar in some way. For example, "These kinds of opportunities don't come around very often."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
These kinds of negotiations are nothing new.
News & Media
These kinds of dreams were ubiquitous.
News & Media
"These kinds of things happen to goalkeepers.
News & Media
I hear these kinds of comments often.
News & Media
These kinds of guys just command respect.
News & Media
"Stars can't afford these kinds of toys.
News & Media
They're these kinds of mounds of calories".
News & Media
"One shouldn't underestimate these kinds of experiences".
News & Media
So you get these kinds of options".
News & Media
We faced these kinds of problems".
News & Media
We keep getting these kinds of stories".
News & Media
Expert writing Tips
Best practice
Use "these kinds of" to refer to multiple items that share common characteristics, ensuring clarity and avoiding ambiguity in your writing.
Common error
Avoid using "these kind of" when referring to a singular noun. The correct form is "this kind of". For example, use "This kind of car is expensive" instead of "These kind of car is expensive".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "these kinds of" functions as a determiner phrase specifying a particular category or group. As evidenced by Ludwig AI, it is used to generalize or classify multiple items sharing similar characteristics. Ludwig shows examples from varied sources that exemplify its broad applicability.
Frequent in
News & Media
55%
Science
15%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "these kinds of" is a common and grammatically sound way to refer to multiple items sharing similar traits. Ludwig AI confirms its widespread use across varied contexts, from news and media to scientific publications. The phrase functions as a determiner, facilitating categorization and generalization. While its register is neutral, it's essential to use it correctly with plural nouns, avoiding the singular form "this kind of" when referring to one item. Remember, as shown by Ludwig, "these kinds of" is most often used to talk about concepts, events, or objects that the author considers closer in relevance to the discussion at hand.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
these sorts of
A direct synonym, nearly interchangeable with the original phrase; differs only in the specific word used for 'kind'.
such types of
Emphasizes a specific category, highlighting the qualities that define the type being referenced.
similar varieties of
Highlights the aspect of variety within a category, suggesting a range of items sharing common traits.
these categories of
Focuses on the classification aspect, useful when discussing organized groupings.
this type of
Singular form, referring to a general category rather than specific instances within it.
these forms of
Highlights the structure or appearance something takes, useful when describing abstract concepts.
examples like these
Directly refers to the given examples, framing the discussion around specific instances.
instances such as these
Stresses particular occurrences, suitable for emphasizing events or situations.
these classes of
Highlights formal or scientific classifications, suitable when discussing biological or structured groupings.
along these lines
Indicates similarity in concept or direction, rather than direct categorization.
FAQs
How can I use "these kinds of" in a sentence?
Use "these kinds of" to refer to multiple items that share common characteristics. For example, "These kinds of problems are common in software development."
What are some alternatives to "these kinds of"?
You can use alternatives like "these sorts of", "such types of", or "similar varieties of depending on the context".
Which is correct, "these kinds of" or "this kind of"?
"These kinds of" is used for plural nouns, while "this kind of" is used for singular nouns. For instance, "these kinds of books" (plural) versus "this kind of book" (singular).
What's the difference between "these kinds of" and "those kinds of"?
"These kinds of" typically refers to items or concepts that are closer in proximity or relevance to the speaker, while "those kinds of" refers to items or concepts that are further away or less immediately relevant. For example, "I enjoy "these kinds of movies"" (referring to movies being discussed) versus "I don't usually watch "those kinds of movies"" (referring to movies generally not preferred).
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested