Choosing between what kind of and what kinds of can feel confusing because both expressions are correct English. The difference comes down to the number of categories you want to ask about. Use what kind of when asking about one category or type, and use what kinds of when asking about multiple categories or types.
For example, you might ask, “What kind of music do you listen to?” when asking about someone’s general music preference. However, “What kinds of music do you enjoy?” invites the person to mention several categories, such as jazz, rock, country, or classical music.
There is one important detail that makes this grammar point trickier than it first appears. The noun following the expression can be singular or plural depending on the sentence structure and intended meaning. You may also hear native English speakers use the singular expression when they expect several examples in the answer. That usage is common and does not automatically make the sentence incorrect.
Understanding the difference will help you write more natural questions, avoid common agreement mistakes, and choose the right expression for conversations, emails, school assignments, and professional communication.
Quick Answer
Use what kind of when asking about one type or category and what kinds of when asking about multiple types or categories. For example, “What kind of car do you drive?” asks about one category, while “What kinds of cars do you like?” invites several categories. Both expressions are grammatically correct.
What Does What Kind Of Mean
What kind of is a question expression used to ask about the type, category, nature, or characteristics of something. It commonly appears before a noun and helps narrow down the information you want.
For example, “What kind of food do you like?” asks about someone’s food preferences. The person might answer Italian food, Mexican food, or spicy food. Although the answer could include several examples, the question uses the singular word kind because it frames the request around a general category.
This distinction matters because asking about a category does not necessarily limit the answer to one item. Someone asking about your favorite kind of book might receive several examples of books that fit that category. The expression simply presents the question from the perspective of one type or general classification.
Examples Of What Kind Of
Here are some natural examples of the singular expression in everyday American English.
- What kind of coffee do you drink in the morning?
- What kind of phone do you use?
- What kind of music helps you concentrate?
- What kind of job are you looking for?
- What kind of movies does your family enjoy?
- What kind of exercise do you do every week?
- What kind of computer works best for your needs?
- What kind of weather do you prefer?
- What kind of book are you reading?
- What kind of training does this position require?
In each example, the question asks about a type or category. The answer may contain one specific example or several related examples, depending on the question and context.
Just as “what kind of” and “what kinds of” depend on whether you’re referring to one category or several, choosing the correct singular or plural form can help you make your sentences sound more natural.
What Does What Kinds Of Mean
What kinds of is used when the question focuses on multiple categories or types. The plural noun kinds signals that the speaker is interested in different groups rather than one general category.
For example, “What kinds of exercise do you enjoy?” suggests that the speaker wants to learn about several types of exercise. The answer might include swimming, walking, cycling, and strength training. The plural form makes the request for variety more explicit.
This expression is especially useful when comparing options, gathering information, conducting surveys, or discussing several categories within a subject. It can also make a question more precise when the speaker already knows that multiple types are relevant.
Examples Of What Kinds Of
These examples show how the plural expression works in natural sentences.
- What kinds of books do you read in your free time?
- What kinds of jobs are available in this industry?
- What kinds of music do you listen to while working?
- What kinds of food should we order for the party?
- What kinds of activities keep children engaged?
- What kinds of cars are popular in your state?
- What kinds of courses does the college offer?
- What kinds of exercise help improve flexibility?
- What kinds of problems did the team encounter?
- What kinds of services does your company provide?
These questions emphasize variety. They invite the listener to identify more than one category, although the listener may still provide only one answer.
What Kind Of vs What Kinds Of Grammar
The main grammatical difference is the singular or plural form of the noun kind. Both expressions function as question phrases, but the choice changes how the question presents the categories being discussed.
| Feature | What kind of | What kinds of |
|---|---|---|
| Form | Singular | Plural |
| Main focus | One general category | Multiple categories |
| Common purpose | Ask about a type | Ask about different types |
| Example | What kind of dog is that? | What kinds of dogs do you like? |
| Typical answer | A beagle | Beagles, poodles, and terriers |
| Correct English | Yes | Yes |
The noun after of also matters. In many ordinary questions, a singular countable noun follows what kind of, while a plural noun often follows what kinds of. For example, “What kind of book is this?” uses the singular book, while “What kinds of books do you enjoy?” uses the plural books.
However, English does not require the answer to contain exactly one item when you use the singular expression. A question such as “What kind of music do you enjoy?” can receive an answer listing several genres. The singular form describes the category being asked about rather than placing a strict limit on the response.
When Should You Use What Kind Of
Use what kind of when you want to identify one type, describe the nature of something, or ask about a general preference. It works well when the question focuses on one category, even if that category includes many possible examples.
For instance, “What kind of laptop should I buy?” asks for guidance about the type of laptop that would suit your needs. The response could mention gaming laptops, lightweight laptops, or business laptops. The question still works naturally because the speaker is asking for a general recommendation.
This form also sounds natural when asking about someone’s habits, preferences, or characteristics. You might ask a friend what kind of movies they enjoy or ask a coworker what kind of software the team uses. In both cases, the singular expression is standard and conversational.
Everyday Examples
Consider these situations.
- Shopping: What kind of shoes are you looking for?
- Food: What kind of dessert should we make?
- Education: What kind of degree do you need for this job?
- Travel: What kind of hotel would you prefer?
- Work: What kind of experience does the position require?
Notice that the noun following what kind of does not always have to be singular. In “What kind of shoes are you looking for?” the word shoes is plural because the question concerns a pair or a general product category. This is standard usage, even though kind remains singular.
Another useful grammar skill is recognizing common plural and possessive mistakes, especially when deciding whether a noun refers to multiple people or indicates ownership.
When Should You Use What Kinds Of
Use what kinds of when you want to emphasize different categories, several varieties, or a range of available options. It is especially helpful when the question naturally calls for a comparison or a list.
For example, “What kinds of insurance does the company offer?” asks about the different insurance categories available. A useful answer might include health insurance, life insurance, and disability insurance. The plural form clearly signals interest in several types.
You will often see this expression in research, education, customer surveys, workplace discussions, and product comparisons. It helps make the scope of a question explicit when several categories matter.
Everyday Examples
- Shopping: What kinds of shoes are available in this store?
- Food: What kinds of desserts can we make without an oven?
- Education: What kinds of degrees does the university offer?
- Travel: What kinds of hotels are available near the airport?
- Work: What kinds of experience are useful for this role?
The plural expression is especially natural when the question asks about a selection of different options. Still, context determines the best choice. If you are asking about one general category rather than several distinct categories, the singular expression may be clearer.
Can What Kind Of Be Followed By A Plural Noun
Yes. What kind of can be followed by a plural noun, and this construction is common in standard English. The singular word kind does not automatically require the noun after of to be singular.
For example, “What kind of books do you read?” is a natural and grammatically acceptable question. It asks about the general category of books someone reads, and the plural noun books refers to the items within that category.
Compare these two questions.
- What kind of books do you enjoy?
- What kinds of books do you enjoy?
Both are correct. The first asks about a general type of book and may invite examples. The second more clearly emphasizes multiple categories of books.
The difference is one of emphasis rather than a strict grammatical rule that makes one sentence correct and the other incorrect. Choose the singular form when you want to frame the question around a general category. Choose the plural form when you want to highlight variety across several categories.
Should The Verb Be Singular Or Plural
The verb depends on the subject of the sentence, not simply on whether you use kind or kinds. This is an important point because writers sometimes assume that the word kind determines the verb form throughout the sentence.
Consider these examples.
- What kind of fruit is available?
- What kind of books do you read?
- What kinds of fruit are available?
- What kinds of books do you read?
The first sentence uses is because the question asks about available fruit as a category or quantity in a singular construction. The second uses do because the subject you takes the auxiliary verb do. The third uses are because the sentence asks about multiple kinds that are available.
The fourth sentence also uses do because the subject is you. The plural word kinds does not control that verb. Instead, the verb follows the subject and the structure of the question.
When checking your grammar, identify the subject first. Then select the verb that agrees with it.
What Kind Of vs What Kinds Of Examples
Looking at similar sentences side by side can help you understand the difference in emphasis. Both forms can be correct, but they may communicate slightly different expectations.
| Singular expression | Plural expression |
|---|---|
| What kind of music do you like? | What kinds of music do you like? |
| What kind of car should I buy? | What kinds of cars should I consider? |
| What kind of book is this? | What kinds of books are on the shelf? |
| What kind of exercise do you recommend? | What kinds of exercise do you recommend? |
| What kind of job are you looking for? | What kinds of jobs are available? |
| What kind of food should we prepare? | What kinds of food should we serve? |
The singular form often works well when asking about one broad preference or category. The plural form is useful when you want to make the range of possible categories more obvious.
Some nouns, such as music and exercise, can refer to broad activities or categories without taking a regular plural form. That is why both “What kind of exercise do you recommend?” and “What kinds of exercise do you recommend?” can work. The plural kinds refers to the different categories of exercise, not necessarily to a plural form of the word exercise.
Common Mistakes To Avoid
One common mistake is assuming that what kind of must always be followed by a singular noun. That rule is too rigid and does not reflect normal English usage.
Incorrect assumption: What kind of books do you read? is always wrong.
Correct: What kind of books do you read? is acceptable, and so is What kinds of books do you read?
The choice depends on the intended meaning. The singular expression can refer to a general category, while the plural expression places more emphasis on different categories.
Another mistake is using the plural expression when the question clearly concerns one specific type. For example, if you are holding one unfamiliar plant and want to identify it, “What kind of plant is this?” is usually the more direct question. Asking “What kinds of plant is this?” would sound awkward because the sentence mixes a plural category expression with a singular noun and verb structure.
A final mistake is assuming that the verb must agree with kind or kinds. In questions such as “What kinds of movies do you watch?” the auxiliary verb do agrees with you, not with kinds. Focus on the sentence’s subject and structure instead of relying on the nearest noun.
When learning English, understanding differences between British and American English can also help you recognize why certain word forms are more common in one region than another.
Formal And Casual Usage
Both expressions are natural in formal and informal American English. You can use them in casual conversations, emails, academic writing, surveys, interviews, and workplace communication.
In a casual conversation, you might ask, “What kind of music are you into?” The wording sounds friendly and natural because it asks about a general preference. If you want someone to list several genres, you might ask, “What kinds of music do you listen to?”
In a professional survey, the plural form can be useful when the goal is to collect information about multiple categories. For example, “What kinds of training would help you perform your job more effectively?” makes it clear that respondents can consider several types of training.
Neither expression is inherently more formal or more correct than the other. The choice should reflect the information you want to gather and the context in which you are asking the question.
Frequently Asked Questions
Is what kind of or what kinds of correct
Both expressions are correct. Use what kind of to ask about one general category and what kinds of to emphasize multiple categories. For example, “What kind of car do you drive?” asks about a general type, while “What kinds of cars do you like?” invites a broader range of answers.
Can you say what kind of books
Yes. “What kind of books do you read?” is standard English. The singular word kind can refer to a general category even when the noun after of is plural. You can also say “What kinds of books do you read?” when you want to emphasize several different categories.
Should I use a singular or plural noun after what kind of
The noun can be singular or plural depending on what you mean. “What kind of book is this?” refers to one book, while “What kind of books do you enjoy?” asks about a general category of books. The expression does not automatically require a singular noun.
Is what kinds of grammatically correct
Yes. “What kinds of” is grammatically correct when you are asking about multiple categories or varieties. For example, “What kinds of classes are available next semester?” asks about different course categories. Make sure the rest of the sentence follows the appropriate subject and verb structure.
What is the difference between kind and kinds
Kind is singular and usually refers to one category or type. Kinds is plural and refers to multiple categories or types. For example, “This kind of plant needs sunlight” refers to one type, while “These kinds of plants need sunlight” refers to several types.
Can what kind of refer to several answers
Yes. A question using what kind of can receive several answers because the expression often asks about a broad category rather than limiting the response to one item. For example, “What kind of music do you like?” could receive the answer “Jazz, rock, and classical music.” The singular form remains correct.
Is what kinds of more formal than what kind of
No. Neither expression is inherently more formal. Both work in everyday conversation and professional writing. The plural form emphasizes variety, while the singular form asks about a general type. Choose the expression that most clearly communicates the question you intend to ask.
How do I choose between what kind of and what kinds of
Ask yourself if you want to focus on one general category or several distinct categories. Use what kind of for a broad type or general preference and what kinds of when variety matters. Remember that the noun after of can be singular or plural depending on the sentence.
Conclusion
The difference between what kind of vs what kinds of is mainly about how you frame a question. Use what kind of to ask about one general category and what kinds of to emphasize several categories or varieties. Both expressions are grammatically correct, and the singular form can naturally appear before a plural noun.
For example, “What kind of books do you read?” and “What kinds of books do you read?” are both acceptable. The first focuses on a general category, while the second more clearly asks about different categories. When writing or speaking, choose the form that best matches your intended meaning rather than following an overly strict rule about singular and plural nouns.
