had eaten
Yo ya había comido antes de llegar a la fiesta.
I had already eaten before arriving at the party.
Nunca antes había comido mango.
I had never eaten mango before.
Tom dijo que no había comido nunca un plato tan delicioso.
Tom said he had never eaten such a delicious dish.
No había comido tanto en mi vida.
I had never eaten so much in my life.
Hace tiempo que no había comido un desayuno verdadero.
It's been a while since I've had a real breakfast.
En mi vida había comido tanto y tan bien.
Never in my life had I eaten so much and so well.
— Comer, beber, amar (1994)
Tom no podía recordar qué había comido de desayuno.
Tom couldn't remember what he had eaten for breakfast.
Tom hizo una lista de toda la comida que había comido esa semana.
Tom made a list of all the food he had eaten that week.