Comparatives of equality (tan ... como)

Comparing Things: "As... As"

To say two things share a quality equally ("as... as"), use tan followed by an adjective, and then como.

tan + adjective + como

My camera is as modern as your phone.
Mi cámara es tan moderna como tu teléfono.
This model is as expensive as that one.
Este modelo es tan caro como ese.

Adjective Agreement

The adjective must match the gender and number of the first noun you are describing. Notice how cómodos matches los zapatos nuevos below.

The new shoes are as comfortable as the old model.
Los zapatos nuevos son tan cómodos como el modelo viejo.

"Not As... As"

To say something is not as... as another, simply add no before the verb.

This camera is not as light as ours.
Esta cámara no es tan ligera como la nuestra.
The new model is not as practical as the old one.
El modelo nuevo no es tan práctico como el viejo.