Spanish grammar: pronombres indefinidos

What this grammar point covers

Indefinite pronouns in Spanish are words used to refer to people, things, or quantities in a general or non-specific way.

When to use it

Use indefinite pronouns in Spanish when you want to talk about people or things without saying exactly who or what. They are common in questions, negative sentences, and when you don't know or don't want to specify details.

Key forms

• alguien
• nadie
• algo
• nada
• alguno/alguna/algunos/algunas
• ninguno/ninguna
• cualquiera
• todo/toda/todos/todas

Examples

Tips

• Remember that some indefinite pronouns change form for gender and number (for example: alguno/alguna/algunos/algunas).
• In negative sentences, use 'nadie' for people and 'nada' for things.
• Do not use double negatives in Spanish with indefinite pronouns like in English.

Exceptions and edge cases

• The pronouns 'alguno' and 'ninguno' drop the final 'o' before a masculine singular noun: 'algún libro', 'ningún problema'.