This is an irregular verb. It follows the conjugation pattern of the verb volar.
PresentPresente
Mi hija sueña con ser doctora.
My daughter dreams of becoming a doctor.
PreteritePretérito indefinido
Anoche soñé con una playa enorme.
Last night I dreamed about a huge beach.
ImperfectPretérito imperfecto
De joven, yo soñaba con viajar por el mundo.
When I was young, I dreamed of traveling the world.