The difference between what kind of vs what kinds of may seem like a tiny grammar detail, but that single “s” causes plenty of confusion. Many writers assume the choice depends only on whether the next noun is singular or plural. That’s one of the most common grammar mistakes. The real answer is much simpler. It depends on whether you’re asking about one category or multiple categories. In this guide, you’ll learn the correct grammar rules, discover practical examples, avoid common writing mistakes, and gain an easy memory trick. By the end, you’ll choose the right phrase with confidence every time.
Quick Answer What Kind of vs What Kinds of
If you’re in a hurry, here’s the simple rule.
| If You’re Asking About… | Use |
|---|---|
| One type, category, or variety | What kind of |
| Several types, categories, or varieties | What kinds of |
For example:
- What kind of music do you enjoy?
- What kinds of books do you usually read?
In the first question, you’re asking someone to identify one general type of music they enjoy. In the second, you’re inviting them to mention several categories of books.
Although the rule is straightforward, real-life English isn’t always black and white. That’s because what kind of can sometimes be followed by plural nouns without being grammatically incorrect. Understanding why that happens is the key to mastering this topic.
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What Does “What Kind of” Mean?
Let’s start with the basics.
The what kind of meaning is simply “which type of” or “which category of.” You use this expression when you’re asking someone to identify a single general type of person, place, thing, idea, or activity.
Think of it as asking:
“Which type are you talking about?”
For example:
- What kind of dog do you have?
- What kind of music do you listen to?
- What kind of food do you enjoy?
- What kind of job are you looking for?
Even though the answer may include several examples, the question itself focuses on one overall category.
If someone asks:
What kind of music do you like?
A natural reply might be:
I like jazz.
or
Mostly classical music.
The speaker isn’t asking you to list every genre you’ve ever listened to. They’re simply asking you to identify your main preference.
When to Use “What Kind of”
Use what kind of whenever your question focuses on one general category instead of several different ones.
You’ll hear this expression every day in conversations, classrooms, interviews, workplaces, and customer service interactions.
For example:
- What kind of movie would you like to watch?
- What kind of car do you drive?
- What kind of teacher inspired you the most?
- What kind of technology does your company use?
- What kind of exercise do you recommend for beginners?
Notice that each question asks about one overall type rather than a list of different categories.
Understanding the Grammar of “What Kind of”
Many learners search for what kind of grammar because the structure seems confusing at first.
Grammatically, what kind of is an interrogative phrase used to ask about a type or category.
The basic pattern looks like this:
What kind of + noun + verb…?
For example:
- What kind of music do you enjoy?
- What kind of food does she cook?
- What kind of technology is your company using?
The phrase introduces the question, while the noun tells the reader what category you’re asking about.
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Can “What Kind of” Be Followed by a Plural Noun?
Yes and this is where many grammar guides oversimplify the rule.
A common myth is that what kind of must always be followed by a singular noun.
That’s simply not true.
Consider these perfectly natural questions:
- What kind of books do you read?
- What kind of clothes should I pack?
- What kind of problems are you facing?
These sentences are grammatically correct because you’re still asking about one general type, even though the nouns are plural.
For example:
What kind of books do you enjoy?
This question doesn’t necessarily ask for several categories. It could simply mean:
What type of books do you usually like?
Now compare it with:
What kinds of books do you enjoy?
This version clearly invites the listener to mention multiple genres or categories, such as mystery, science fiction, biographies, and fantasy.
That’s the real difference not whether books is plural.
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What Kind of Examples
Here are some natural what kind of examples from everyday English.
Everyday Conversations
- What kind of music do you usually listen to?
- What kind of food should we order?
- What kind of weather are they expecting tomorrow?
- What kind of hobbies do you enjoy?
- What kind of phone do you use?
At Work
- What kind of software does your team use?
- What kind of project are you managing?
- What kind of training do new employees receive?
- What kind of experience are employers looking for?
At School
- What kind of questions will be on the exam?
- What kind of research are you conducting?
- What kind of books does the course recommend?
- What kind of evidence supports your argument?
In every example, the speaker wants to know one general type.
What Kind of in a Sentence
Here are more what kind of sentence examples.
- What kind of dog makes a good family pet?
- What kind of business would you like to start?
- What kind of clothes are appropriate for a job interview?
- What kind of language is spoken there?
- What kind of technology will shape the future?
- What kind of books do children enjoy the most?
- What kind of exercise is best for beginners?
Notice how naturally what kind of works with both singular and plural nouns. The important idea is that the speaker is asking about one category.
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What Does “What Kinds of” Mean?
Now let’s look at the plural form.
The what kinds of meaning is “which types of” or “which categories of.”
Unlike what kind of, this phrase asks about more than one variety.
For example:
- What kinds of books do you enjoy reading?
- What kinds of animals live in the rainforest?
- What kinds of businesses are growing the fastest?
- What kinds of movies do your children enjoy?
Each question encourages the listener to mention multiple categories, not just one.
For example:
What kinds of books do you read?
A natural response might be:
I enjoy mystery novels, biographies, and historical fiction.
That’s exactly why kinds is plural.
When to Use “What Kinds of”
Choose what kinds of whenever you expect more than one type as the answer.
It’s especially common when discussing broad topics with many possible categories.
For example:
- What kinds of jobs interest you?
- What kinds of languages are spoken in Switzerland?
- What kinds of animals migrate each year?
- What kinds of businesses benefit from digital marketing?
- What kinds of exercises improve flexibility?
- What kinds of problems can this software solve?
Each question invites a broader answer than what kind of would.
Understanding the Grammar of “What Kinds of”
The what kinds of grammar follows a similar structure.
What kinds of + plural noun + verb…?
For example:
- What kinds of movies do you enjoy?
- What kinds of questions will be asked?
- What kinds of teachers inspire students?
- What kinds of cars are most reliable?
Because kinds is plural, the phrase naturally refers to multiple categories.
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What Kinds of Examples
Here are more what kinds of examples.
Everyday English
- What kinds of restaurants do you like?
- What kinds of pets are easy to care for?
- What kinds of vacations do you prefer?
Business English
- What kinds of customers does the company serve?
- What kinds of projects does your department handle?
- What kinds of skills are employers looking for?
Academic English
- What kinds of evidence support this theory?
- What kinds of writing assignments will students complete?
- What kinds of experiments were performed?
In every case, the speaker expects several possible categories rather than a single general type.
What Kinds of in a Sentence
Here are a few more examples.
- What kinds of books do you recommend?
- What kinds of foods are rich in protein?
- What kinds of problems are most common?
- What kinds of businesses succeed online?
- What kinds of teachers have influenced your life?
- What kinds of languages are considered Romance languages?
A simple way to remember the rule is this:
Use “what kind of” when you’re asking about one general type. Use “what kinds of” when you’re asking about several different types. Focus on the meaning of your question not just whether the next noun is singular or plural.
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What Kind of vs What Kinds of, The Key Grammar Difference
The difference between what kind of vs. what kinds of isn’t just about adding an “s.” It’s about the meaning behind your question.
A common misconception is that what kind of must always be followed by a singular noun and what kinds of must always be followed by a plural noun. While that guideline works in many situations, it doesn’t tell the whole story. The real rule is much more practical.
Ask yourself one simple question:
Am I asking about one type or several different types?
If you’re asking about one general category, use what kind of.
If you’re asking about multiple categories or varieties, use what kinds of.
For example:
- What kind of music do you enjoy?
- What kinds of music do you enjoy?
Both questions are grammatically correct, but they don’t ask exactly the same thing.
The first asks about your overall preference. The second invites you to mention different genres, such as jazz, pop, rock, or classical.
That’s the key difference.
One Category vs Multiple Categories
The easiest way to remember the rule is to focus on the number of categories, not the number of nouns.
Use what kind of when you’re referring to:
- One type
- One category
- One variety
- One classification
For example:
- What kind of phone do you use?
- What kind of business do you own?
- What kind of teacher inspired you the most?
- What kind of exercise do you recommend?
Each question asks for one general answer.
Use what kinds of when you expect someone to name several different categories.
For example:
- What kinds of books do you enjoy?
- What kinds of sports do you play?
- What kinds of businesses are growing the fastest?
- What kinds of movies do your children like?
These questions encourage broader answers because they ask about multiple types.
Countable and Uncountable Nouns
Another area that causes confusion is the difference between countable and uncountable nouns.
With uncountable nouns, you’ll usually use what kind of because you’re asking about one general category.
For example:
- What kind of music do you like?
- What kind of advice would you give?
- What kind of information do you need?
- What kind of equipment does the company use?
- What kind of furniture are you looking for?
Even though these nouns can’t normally be counted, the question still refers to one type.
Countable nouns are more flexible.
Compare these examples:
What kind of books do you read?
What kinds of books do you read?
Both are correct.
The first asks about your general reading preference.
The second suggests that the speaker expects several genres as the answer.
This subtle difference is what makes English both interesting and challenging.
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Why the Noun Doesn’t Always Determine the Answer
Many grammar learners rely on this rule:
- Singular noun = what kind of
- Plural noun = what kinds of
Unfortunately, that shortcut doesn’t always work.
Consider these questions:
- What kind of books do you enjoy?
- What kind of clothes should I pack?
- What kind of problems have you encountered?
Although books, clothes, and problems are plural nouns, each sentence asks about one overall category.
Now compare them with these questions:
- What kinds of books do you usually read?
- What kinds of clothes do teenagers wear today?
- What kinds of problems does this software solve?
These questions clearly ask about multiple categories, making the plural form the better choice.
In other words, don’t let the noun make the decision for you. Let the meaning of your question guide your choice.
Subject-Verb Agreement
Another question that often appears in grammar discussions is whether the verb should agree with kind, kinds, or the noun that follows.
The answer depends on the sentence.
Consider these examples:
- What kind of music is this?
- What kinds of books are available?
- What kind of questions were asked?
- What kinds of problems have occurred?
Rather than memorizing complicated rules, identify the true subject of the sentence and choose the verb that matches it naturally.
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What Kind of vs What Kinds of Comparison Table
The following table summarizes the difference in a simple way.
| Situation | What Kind of | What Kinds of |
|---|---|---|
| Asking about one type | ✔ | ✘ |
| Asking about several types | ✘ | ✔ |
| One general preference | ✔ | ✘ |
| Multiple categories | ✘ | ✔ |
| One variety of music | ✔ | ✘ |
| Several music genres | ✘ | ✔ |
| One type of job | ✔ | ✘ |
| Different job categories | ✘ | ✔ |
Whenever you’re unsure, don’t count nouns.
Instead, ask yourself:
Am I expecting one type or several types as the answer?
That simple question almost always leads you to the correct choice.
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When to Use “What Kind of”
Although what kind of appears in countless everyday conversations, it’s especially useful when you’re asking someone to identify a single category or describe an overall preference.
Asking About One General Type
This is the most common use.
Examples include:
- What kind of music do you enjoy?
- What kind of phone do you use?
- What kind of coffee do you usually drink?
- What kind of weather are we expecting?
Each question looks for one broad answer rather than a detailed list.
Asking About Preferences
You’ll hear what kind of whenever people discuss likes, dislikes, recommendations, or opinions.
For example:
- What kind of books do you enjoy reading?
- What kind of vacation do you prefer?
- What kind of exercise works best for beginners?
- What kind of movies interest you?
Although the answer may include several examples, the question itself asks about one overall preference.
Identifying a Category
Sometimes the goal isn’t to learn someone’s preference but to classify something.
For example:
- What kind of animal is a whale?
- What kind of business is this?
- What kind of language is Arabic?
- What kind of organization sponsors the event?
In each case, the speaker wants one classification.
Using “What Kind of” with Plural Nouns
This is one of the most misunderstood parts of what kind of grammar.
Many learners hesitate when they see sentences such as:
- What kind of books do you read?
- What kind of clothes should I wear?
- What kind of questions will be on the test?
- What kind of problems are common in this industry?
All of these sentences are perfectly natural because the speaker is asking about one general category, not multiple categories.
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When to Use “What Kinds of”
Choose what kinds of whenever you expect the answer to include several different categories, varieties, or classifications.
Asking About Multiple Types
This is the most obvious use.
For example:
- What kinds of books do you collect?
- What kinds of sports do your children play?
- What kinds of languages would you like to learn?
- What kinds of careers are available in this field?
Each question invites more than one answer.
Comparing Different Categories
The plural form is also ideal when discussing choices or comparing options.
For example:
- What kinds of businesses succeed online?
- What kinds of investments are considered low risk?
- What kinds of technologies are changing healthcare?
- What kinds of marketing strategies work best?
Here, the speaker isn’t looking for a single example. They’re asking about several possibilities.
Talking About Variety
Whenever variety is the focus, what kinds of is usually the better choice.
For example:
- What kinds of animals live in the rainforest?
- What kinds of flowers bloom in spring?
- What kinds of foods are rich in protein?
- What kinds of problems can artificial intelligence solve?
The plural form naturally suggests diversity.
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Real-Life Examples of What Kind of vs What Kinds of
Seeing both expressions side by side makes the difference much easier to understand.
| Situation | One General Type | Several Types |
|---|---|---|
| Music | What kind of music do you enjoy? | What kinds of music do you listen to? |
| Books | What kind of books do you usually read? | What kinds of books are your favorites? |
| Food | What kind of food should we order? | What kinds of foods are popular in Japan? |
| Jobs | What kind of job are you looking for? | What kinds of jobs are available? |
| Movies | What kind of movie should we watch tonight? | What kinds of movies do you enjoy most? |
Notice that both versions are often grammatically correct.
The difference lies in the scope of the question. One asks about a general category, while the other invites a broader range of answers.
Common Mistakes and How to Avoid Them
Even experienced writers occasionally confuse these two expressions. Fortunately, the mistakes are easy to fix once you understand the underlying rule.
Mistake 1: Focusing Only on Singular and Plural
Many learners memorize a shortcut instead of understanding the meaning.
The better rule is this:
- One category = what kind of
- Several categories = what kinds of
Think about the answer you expect—not just the noun that follows.
Mistake 2: Assuming Plural Nouns Always Need “Kinds”
This is one of the most common grammar mistakes.
For example:
What kind of books do you enjoy?
Some learners believe this sentence is wrong simply because books is plural.
It isn’t.
The sentence asks about one general category of books, making what kind of perfectly acceptable.
Mistake 3: Using “What Kinds of” When One Type Is Enough
Compare these questions:
- What kind of car are you looking for?
- What kinds of cars are you considering?
The first asks about one general type.
The second suggests you’re comparing several categories.
Choosing the wrong phrase changes the meaning of the question.
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A Simple Memory Trick
If you ever get stuck, remember this easy rule:
One type? Use “what kind of.”
Several types? Use “what kinds of.”
Don’t focus on whether the following noun is singular or plural.
Instead, think about the answer you want.
If you’re asking someone to identify one general category, choose what kind of.
If you’re inviting them to discuss multiple categories or varieties, choose what kinds of.
Once you start thinking about meaning instead of memorizing rules, choosing the correct phrase becomes almost automatic.
Related Expressions
Once you understand what kind of vs. what kinds of, you’ll notice the same pattern in many other English expressions. These phrases all distinguish between one category and multiple categories.
| Singular Form | Plural Form | Meaning |
|---|---|---|
| Type of | Types of | One type vs. several types |
| Kind of | Kinds of | One category vs. multiple categories |
| Sort of | Sorts of | One sort vs. different sorts |
| Category of | Categories of | One category vs. multiple categories |
For example:
- What type of phone do you use?
- What types of phones are most popular?
- What sort of books do you enjoy?
- What sorts of movies do children like?
Once you recognize this pattern, choosing the correct expression becomes much more intuitive.
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American English vs British English
A common question is whether American English and British English treat these expressions differently.
The answer is no.
Both varieties follow the same grammar rules for what kind of and what kinds of. Whether you’re writing an email in New York or having a conversation in London, the choice depends on meaning, not regional preference.
For example, both American and British speakers naturally say:
- What kind of music do you like?
- What kinds of books do you read?
- What kind of food is popular here?
- What kinds of sports do children play?
The only differences you’ll typically see involve vocabulary, not grammar.
| American English | British English |
| apartment | flat |
| truck | lorry |
| vacation | holiday |
| elevator | lift |
Regardless of the vocabulary you choose, the grammar rule for kind and kinds stays exactly the same.
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Practice Exercise What Kind of vs What Kinds of
Choose the correct phrase: what kind of or what kinds of.
- ______ music do you usually listen to while working?
- ______ books do you enjoy reading before bed?
- ______ car would be best for a family of five?
- ______ movies are popular with teenagers today?
- ______ food is your favorite when traveling abroad?
- ______ animals can survive in the Arctic?
- ______ job are you hoping to find after graduation?
- ______ languages are spoken in Switzerland?
- ______ clothes should I pack for a business trip?
- ______ sports do children commonly play at school?
- ______ technology does your company use every day?
- ______ restaurants would you recommend in your city?
- ______ questions are usually asked during a job interview?
- ______ teacher inspired you to study English?
- ______ hobbies help people reduce stress?
- ______ phone do you think offers the best value?
- ______ businesses benefit the most from digital marketing?
- ______ exercise is best for improving flexibility?
- ______ books should every entrepreneur read?
- ______ problems does this software solve?
- ______ vacation do you usually prefer—beach or mountains?
- ______ plants grow well indoors?
- ______ computer would you recommend for graphic design?
- ______ skills do employers value the most?
- ______ language would you like to learn next?
Answers
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FAQs
What is the difference between what kind of Vs what kinds of?
The difference between what kind of and what kinds of is the number of categories you’re asking about. Use what kind of when referring to one general type or category. Use what kinds of when referring to two or more types, categories, or varieties.
When should I use what kind of?
Use what kind of when asking about a single type, category, or overall preference.
Example: What kind of music do you enjoy?
When should I use what kinds of?
Use what kinds of when you want someone to name multiple types or categories.
Example: What kinds of books do you usually read?
Can what kind of be followed by a plural noun?
Yes. What kind of can be followed by a plural noun when the question refers to one general category.
Example: What kind of books do you enjoy reading?
Is what kinds of always used with plural nouns?
Yes. What kinds of is normally followed by a plural noun because it refers to multiple categories or varieties.
Example: What kinds of animals live in Australia?
Is “what kind of books” grammatically correct?
Yes. What kind of books is grammatically correct because it asks about one overall type or category of books, even though books is plural.
Is “what kinds of music” grammatically correct?
Yes. Use what kinds of music when you’re asking about multiple genres, such as jazz, rock, classical, or pop.
How do you choose between kind and kinds?
Choose kind when referring to one category and kinds when referring to multiple categories. Think about the answer you expect rather than the noun that follows.
Why do people confuse what kind of vs what kinds of?
Many people mistakenly believe the rule depends only on whether the following noun is singular or plural. In reality, the correct choice depends on whether you’re asking about one category or multiple categories.
Does what kind of vs what kinds of change in American and British English?
No. Both American English and British English follow the same grammar rules. The distinction is based on meaning, not regional usage.
Can what kind of and what kinds of be used in formal writing?
Yes. Both expressions are appropriate in formal, academic, business, and everyday writing when used according to their grammatical meaning.
What’s the easiest way to remember the rule?
A simple memory trick is:
- One type or category = what kind of
- Multiple types or categories = what kinds of
If you’re asking about one general classification, use what kind of. If you’re asking about several classifications, use what kinds of.
Conclusion
The what kind of vs what kinds of question confuses many writers because the difference looks so small. It’s easy to assume the choice depends only on whether the next noun is singular or plural, but that’s where most grammar mistakes begin. The real rule is much simpler: think about the meaning of your question. If you’re asking about one general type or category, use what kind of. If you’re asking about multiple types, categories, or varieties, use what kinds of.
Whenever you’re unsure, don’t focus on the noun that follows. Instead, ask yourself, “Am I expecting one category or several?” The answer will almost always point you to the correct phrase.
In the end, this isn’t a battle between right and wrong it’s about choosing the expression that best matches your meaning. Once you understand that simple distinction, the confusion disappears. The next time that tiny “s” tries to make your grammar work overtime, you’ll know exactly where it belongs.
Jhon AJS, the creative mind behind Grammar Update, is an experienced blogger passionate about simplifying English grammar. He focuses on explaining confusing word vs word differences, grammar rules, punctuation, and sentence structure in a clear and practical way. Through easy to understand guides and examples, Jhon helps readers improve their writing and communicate with confidence. With years of blogging experience, he continues to share helpful insights that make learning grammar simple, useful, and accessible for everyone.
