Regular past participles (-ado, -ido)

In Spanish, you can turn a verb into an adjective to describe the completed state of something (like "packed" or "frozen"). These are called past participles.

Forming Regular Past Participles

To form a regular past participle, drop the ending of the infinitive verb and add a new suffix:

  • For -ar verbs, add -ado.
  • For -er and -ir verbs, add -ido.

For example, procesar (to process) becomes procesado, and moler (to grind) becomes molido.

The coffee bean is roasted and ground.
El grano de café está tostado y molido.
The fish is frozen.
El pescado está congelado.

Matching Gender and Number

When you use a past participle as an adjective, it must match the noun it describes in both gender and number. This means the ending will change to -o, -a, -os, or -as to agree with the noun.

The wheat is packed in the sack.
El trigo está empacado en el saco.

Notice how the ending changes to -a when describing feminine nouns like comida (food) or carne (meat):

The supermarket has processed and packed food.
El supermercado tiene comida procesada y empacada.
The cans have frozen meat.
Las latas tienen carne congelada.