Mi tía sueña con subir un volcán activo cuando tenga más tiempo.

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Breakdown of Mi tía sueña con subir un volcán activo cuando tenga más tiempo.

• ella: she
• tener: to have
• más: more

Questions & Answers about Mi tía sueña con subir un volcán activo cuando tenga más tiempo.

Why does the sentence use sueña con instead of just sueña or sueña de?

In Spanish, the verb soñar almost always goes with the preposition con when it means to dream of / to dream about something:

• Soñar con algo = to dream of/about something
• Soñar con hacer algo = to dream of/about doing something

So:

• Mi tía sueña con subir un volcán activo…
  = My aunt dreams of climbing an active volcano…

Using de (soñar de) is not standard in modern Spanish in this meaning, and saying mi tía sueña subir… without con sounds incorrect to native speakers in this context.

Another common pattern is:

• Soñar que + verb:
  Anoche soñé que subía un volcán.
  = Last night I dreamed that I was climbing a volcano.

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Why is it subir (infinitive) and not a conjugated verb like sube?

After soñar con, when you talk about an action in general (not tied to a specific time), Spanish normally uses the infinitive:

• Soñar con + infinitive
  Sueño con viajar a México.
  I dream of traveling to Mexico.

So:

• sueña con subir un volcán activo
  she dreams of climbing an active volcano

If you conjugate the verb, you change the structure and the meaning:

• Sueña que sube un volcán activo.
  She dreams that she climbs / is climbing an active volcano.
  → This sounds more like a literal dream while sleeping, describing the scene.

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