Spanish phrase
No prometo nada.
Meaning
I can't guarantee anything.
When to use it
States inability to guarantee an outcome. Common in professional settings when results or dates cannot be assured, usually followed by proposed plans or conditions.
Example dialogue
¿Me aseguran que aumentarán las ventas este trimestre?
Can you guarantee that sales will increase this quarter?
No prometo nada, sin embargo podemos presentar un plan con metas y plazos.
I can't guarantee anything, but we can present a plan with goals and deadlines.