Examples of using "Zapewniam" in a sentence and their english translations:
I can assure you of his earnestness.
He is no monster, I assure you.
but I assure you it's not.
But I assure you, that is not my intention.
Take it easy. I can assure you that everything will turn out fine.
They're fighting fiercely now but I assure you they'll bury the hatchet before long.