Ninguno and ninguna are the Spanish equivalents of English none, no, or not any. They're used to say that zero of something exists, applies, or is true. They behave partly like adjectives and partly like pronouns, and their forms follow rules that are worth memorizing up front.
The Forms
Ninguno agrees in gender with the noun it refers to:
| Form | Used with | Example |
|---|---|---|
| ningún | masculine singular noun (short form) | ningún libro |
| ninguno | masculine, standing alone as pronoun | Ninguno sirve. |
| ninguna | feminine singular | ninguna idea |
Just like uno/un and bueno/buen, ninguno drops the final -o before a masculine singular noun. You would never write "ninguno libro"; it's always ningún libro.
Before a Noun
When ninguno modifies a noun, use the short form ningún (masculine) or ninguna (feminine). Notice how double negation still applies when the phrase comes after the verb.
No tengo ningún problema con eso.
I don't have any problem with that.
No veo ningún error en tu tarea.
I don't see any mistakes in your homework.
As a Standalone Pronoun
Ninguno and ninguna can stand on their own, without a following noun, meaning none or not one.
—¿Tienes hermanos? —No, no tengo ninguno.
Do you have siblings? No, I don't have any.
When used this way with de, ninguno still stays singular even though English often uses a plural verb.
Almost Always Singular
This is the trickiest feature of ninguno for English speakers. Because none logically refers to zero, Spanish treats it as singular by default. You will rarely see ningunos or ningunas in everyday speech.
No tengo ninguna duda.
I have no doubts.
Notice that the English is plural (doubts), but the Spanish is singular (duda). This pattern is very common: sing in Spanish, plural in English.
The plural forms ningunos and ningunas do exist, but they're reserved for nouns that are inherently plural (like vacaciones, vacation) or for somewhat formal or emphatic contexts. In day-to-day conversation, stick with the singular.
Combined with No
When ninguno comes after the verb, the sentence needs no in front, following the double negation rule.
No conozco a ninguno de ellos.
I don't know any of them.
When ninguno comes before the verb (less common, but possible), the no is dropped.
Ninguna de sus razones me convenció.
None of his reasons convinced me.
For more on how ninguno fits into the broader family of negative words, see Negative Words.
Related Topics
- Negative Words (Nada, Nadie, Nunca)A2 — A guide to the most common Spanish negative words and their affirmative counterparts.
- Double Negation RulesA2 — Why Spanish requires two negatives when a negative word follows the verb.
- Basic Negation with NoA1 — Learn how to form simple negative sentences in Spanish using no before the verb.