will stop
Come lo fermerete?
How will you stop him?
Finché non succede una tragedia non vi fermerete, voi.
You won't stop until there's a tragedy, will you?
— Storie pazzesche (2014)
Come la fermerete?
How will you stop it?
Come li fermerete?
How will you stop them?
Come mi fermerete?
How will you stop me?