Spanish phrase
Te prometo que no diré nada.
Meaning
I promise I won't say anything.
When to use it
The speaker promises not to reveal anything. This phrase helps reassure someone that a secret will be safe.
Example dialogue
¿No le dirás a mamá que estamos preparando su regalo?
You won't tell Mom that we're preparing her gift, will you?
Te prometo que no diré nada.
I promise I won't say anything.