Cuál and cuáles are used when choosing from a known or limited set of options.
Cuál is singular and usually means “which” or “which one.”
Cuáles is the plural form and means “which ones.”
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Here are some common examples with cuál:
¿Cuál prefieres?
(Which one do you prefer?)
¿Cuál es tu libro favorito?
(Which is your favourite book?)
¿Cuál es tu número de teléfono?
(What is your phone number?)
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When the question refers to more than one option, use cuáles.
For example:
¿Cuáles son tus películas favoritas?
(Which are your favourite films?)
¿Cuáles prefieres?
(Which ones do you prefer?)
¿Cuáles son tus colores favoritos?
(Which are your favorite colors?)
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The choice between cuál and cuáles depends on whether you’re referring to one option or several.
Compare these two questions:
¿Cuál quieres?
(Which one do you want?)
(Which ones do you want?)
¿Cuáles quieres?
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In the first question, the speaker is asking about a single choice.
In the second, the speaker is asking about multiple choices.
Learning to distinguish between the singular and plural forms will help you ask more accurate questions and understand everyday Spanish more naturally.
Questions with Interrogative Words in Spanish
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