Spanish grammar: voz pasiva

What this grammar point covers

The 'voz pasiva' (passive voice) in Spanish is a way to focus on the action or the object of the action, rather than on who does it. In passive sentences, the subject receives the action.

When to use it

Use the passive voice in Spanish when you want to emphasize the action or the result, and the person or thing doing the action is unknown, unimportant, or obvious.

Key forms

• ser + past participle (participio pasado) + por + agent (optional)
• Example: El libro fue escrito por el autor.

Examples

Tips

• Remember to match the past participle in gender and number with the subject (e.g., 'La carta fue escrita', 'Los libros fueron escritos').
• Use 'por' to introduce who does the action, but you can leave it out if it's not important.
• Not all active sentences can be turned into passive in Spanish, especially with some verbs.

Exceptions and edge cases

• Some verbs cannot be used in the passive voice.
• Sometimes, Spanish uses 'se' (pasiva refleja) instead of the regular passive voice, especially when the agent is unknown.