¿Por qué no me dijiste que estabas saliendo con Gerardo? - Porque con quién salgo no es asunto tuyo.Why didn't you tell me you were going out with Jorge? - Because who I choose to go out with is none of your business.
¿Me vas a decir con quién estabas hablando? - No. Lo siento, pero no es asunto tuyo.Are you going to tell me who you were talking to? - No. I'm sorry, but it's not your business.
Deja de espiar a los vecinos. Lo que sea que estén haciendo no es asunto tuyo.Stop spying on the neighbors. Whatever they're doing is not your business.