Spanish phrase
Si no ~, ~.
Meaning
If you do not ___, ___.
When to use it
A conditional warning about consequences. It is used to urge someone to act by warning that failing to do something will lead to a refusal or penalty.
Example dialogue
Si no haces la tarea, no puedes salir.
If you do not do your homework, you cannot go out.
¡Pero ya la hice!
But I already did it!