Spanish phrase
¿Estás seguro de que ~?
Meaning
Are you really sure that ___?
When to use it
Asks whether someone is really convinced. A more probing, everyday question used to express doubt or request reassurance.
Example dialogue
¿Estás seguro de que la fiesta es hoy?
Are you really sure that the party is today?
No, creo que es mañana.
No, I think it's tomorrow.