willingly
No quieren hacerlo por las buenas, lo quieren por las malas.
They don't want to do it the easy way, they want to do it the hard way.
— El quinto elemento (1997)
He gave it to me willingly.
Si no lo entienden por las buenas lo van a entender por las malas.
If they don't understand it the easy way, they'll understand it the hard way.
Arreglaremos las cosas por las buenas.
We'll settle things amicably.