có...không — Yes/No Questions

Meaning & Usage

In Vietnamese, forming a yes/no question is straightforward, primarily achieved through the grammatical pattern có...không. This structure is one of the foundational elements for beginners (A1 level) and is crucial for everyday communication. While có literally means 'to have' or 'to exist/be present', and không means 'no' or 'not', their combination in a question doesn't always translate directly to 'Do you have...?' Instead, có...không acts as a general interrogative frame, similar to how 'do/does' or 'is/are' function at the beginning of a yes/no question in English.

Think of có...không as enveloping a statement, turning it into an inquiry that expects a 'yes' or 'no' answer. It essentially asks, 'Is this statement true?' or 'Does this action/state occur?' For example, if you want to ask 'Do you speak Vietnamese?', you would literally construct it as 'You có speak Vietnamese không?' (Bạn có nói tiếng Việt không?). Here, có doesn't imply 'having' the ability to speak, but rather, it marks the verb 'nói' (to speak) as part of a question. Similarly, when asking 'Is it far?', you use 'Nó có xa không?' (It có far không?).

This pattern is remarkably versatile and can be applied to actions (verbs), states (adjectives), or existence (nouns). It's the go-to structure for verifying information, confirming facts, or inquiring about someone's status or possession. The pattern is largely consistent across regional dialects (Northern, Central, Southern Vietnam), making it universally understood. While specific pronunciations or occasional word choices might vary, the fundamental structure of có...không remains the same. Understanding this pattern provides a solid mental model for how Vietnamese interrogatives function, emphasizing the role of particles at the beginning and end of a statement to transform it into a question.

The particle có is essential in most formal and standard questions, ensuring clarity. However, in very casual or fast speech, especially when the context is already clear, có might sometimes be omitted, leaving just the statement followed by không (e.g., 'Bạn khỏe không?' instead of 'Bạn có khỏe không?'), but for learners, always including có is recommended for correctness and politeness.

Structure & Formation

The basic structure for forming yes/no questions with có...không is very consistent:

[Subject] + có + [Verb/Adjective/Noun Phrase] + không?

Let's break down the components:

• Subject: This is the person or thing performing the action or being described (e.g., tôi, bạn, anh ấy, cô ấy, chúng ta, họ, nó, đây).
• có: This acts as a question marker and can also imply 'to have' or 'to exist'.
• Verb/Adjective/Noun Phrase: This is the core of your question – the action, quality, or identity you are inquiring about.
• không?: This word functions as the closing question marker, indicating that a 'yes' or 'no' answer is expected.

Answering Yes/No Questions:

To answer 'yes', you typically use có, often followed by repeating the verb/adjective from the question:

Có, [Subject] + [Verb/Adjective].

To answer 'no', you use không, followed by the negation of the verb/adjective. Note that không also acts as the negator for the statement itself:

Không, [Subject] + không + [Verb/Adjective].

Sometimes, simply 'Có' or 'Không' is sufficient in very informal contexts, but providing a fuller answer is more polite and informative.

Variations in Structure

While the basic structure is solid, there are slight variations depending on the emphasis or the nature of the verb. When asking about possession, có retains its meaning of 'to have':

Example Sentences

General Questions

Questions About States/Adjectives

Questions About Possession/Existence

More Advanced Questions

Common Mistakes

Mistake 1: Omitting 'không' at the end of the question

Learners sometimes forget to include không, which is crucial for marking the sentence as a yes/no question.

❌ Bạn có hiểu bài?

✅ Bạn có hiểu bài không?

Explanation paragraph: Without không, the sentence sounds like an unfinished statement or a declarative sentence that is meant to be a question through intonation only, which is less formal and clear. Always include không for a proper yes/no question.

Mistake 2: Over-literal translation of 'to have' for states

English speakers sometimes struggle with có because they expect it to always mean 'to have'. In Vietnamese, có often functions as an intensifier or a question particle before verbs or adjectives, even when 'to have' isn't implied in the English translation.

❌ Bạn có bận không có?

✅ Bạn có bận không?

Explanation paragraph: In 'Bạn có bận không?' (Are you busy?), có doesn't mean 'to have' busy. It's simply part of the question structure. Repeating 'có' at the end is redundant and incorrect.

Mistake 3: Incorrect word order, especially with adverbs

Vietnamese maintains a strict Subject-Verb-Object (SVO) order, and adverbs typically follow the main verb or adjective they modify. Placing có or không incorrectly can lead to confusion.

❌ Bạn không có đi làm hôm nay?

✅ Bạn có đi làm hôm nay không?

Explanation paragraph: The structure S + có + V/Adj + không? must be maintained. The 'không' at the end is the question marker, while a 'không' within the statement before the verb would negate the verb (e.g., 'Tôi không đi làm' - I don't go to work).

Mistake 4: Not using 'có' when affirming the question

When answering 'yes' to a question, it is standard and polite to start with Có, particularly in formal or semi-formal situations.

❌ Tôi khỏe. (in response to 'Bạn có khỏe không?')

✅ Có, tôi khỏe.

Explanation paragraph: While a simple 'Tôi khỏe' might be understood in very casual settings, 'Có, tôi khỏe' is the complete and polite affirmative response. It confirms the positive answer to the question explicitly.

Cultural Notes

The có...không structure is a fundamental and polite way to ask direct yes/no questions in Vietnamese. It's widely used in all social contexts, from formal interactions with strangers to casual conversations with friends and family. Its directness is not considered rude, but rather efficient and clear.

In informal Northern Vietnamese speech, sometimes the có can be dropped if the context is very clear, making it 'Subject + Verb/Adjective + không?'. For example, instead of 'Bạn có đói không?' (Are you hungry?), one might hear 'Bạn đói không?'. However, for learners, it is always safer and more grammatically sound to include có to avoid ambiguity and to sound more polite. In Southern Vietnamese, the full có...không structure is very consistently used.

When responding to có...không questions, native speakers often provide more than just a simple 'Có' or 'Không'. It's common to follow up with the relevant verb or adjective to make the answer more complete and courteous. For instance, if asked 'Bạn có thích trà không?' (Do you like tea?), a common response would be 'Có, tôi thích trà.' (Yes, I like tea.) or 'Không, tôi không thích trà.' (No, I don't like tea.). This provides clarity and shows engagement in the conversation. The use of appropriate personal pronouns (like 'tôi', 'bạn', 'anh', 'chị') is also vital, reflecting the hierarchical and relational aspects of Vietnamese communication. The intonation typically rises at the end of a có...không question, similar to English yes/no questions, signaling that an answer is expected.

Related Grammar Points

• có...không vs ...chưa — State vs Completion Questions (Comparison A1)
• như thế nào — How? (Manner/Degree) (Grammar A1)
• em — Younger Person Pronoun (Grammar A1)
• các — Plural Marker (Grammar A1)
• của — Possession (Of) (Grammar A1)
• vâng, dạ, ừ — Saying Yes in Vietnamese (Grammar A1)

Practice Tips

Mastering the có...không question structure is fundamental for anyone learning Vietnamese at the A1 level. It is a frequent component in basic conversations and will appear in almost any beginner-level Vietnamese language proficiency exam (NLTV). Here are some tips to help you practice:

• Pattern Drills: Create simple flashcards or use an app to drill the core structure. Take a simple statement like 'Tôi là sinh viên' (I am a student) and immediately transform it into a question: 'Bạn có phải là sinh viên không?'.
• Everyday Questions: Practice forming questions about your daily life. 'Bạn có đi làm không?', 'Bạn có đói không?', 'Món này có ngon không?'. The more you use it in relevant contexts, the more natural it will become.
• Listen Actively: Pay close attention to how native speakers use có...không in conversations, movies, or podcasts. Notice their intonation and how they answer these questions.
• Role-Playing: Practice asking and answering these questions with a language partner or tutor. Focus on both asking correctly and providing appropriate, polite answers.
• Focus on Diacritics: Since Vietnamese is a tonal language, ensuring correct diacritics (tone marks) for words like có and không is crucial. Use online tools or dictionaries to double-check if you're unsure.
• NLTV Exam Relevance: For the NLTV A1 exam, you can expect to encounter có...không in listening comprehension tasks (e.g., identifying a 'yes' or 'no' answer), reading comprehension (understanding simple questions), and basic speaking tasks (forming simple questions about personal information or daily routines). Practice transforming statements into questions and answering them accurately. For instance, a common test question might present a statement and ask you to formulate a yes/no question based on it.