have to
Esperemos que no tengan que hacerlo.
Let's hope they don't have to.
Van a hacer lo que tengan que hacer.
They're going to do what they have to do.
Quizás no tengan que esperar mucho.
They might not have to wait long.
— Impacto (1981)
Ahora, hagan lo que tengan que hacer.
Now, do what you have to do.
— El hundimiento (2004)