I will call him/it
I'll call you later.
Si no le gusta, no lo llamaré nunca más.
If he doesn't like it, I won't call him ever again.
— Ha vuelto (2015)
Tan pronto como esté todo terminado, lo llamaré de inmediato.
As soon as everything is finished, I will call him immediately.
— Leviatán (2014)
I'll call him in the morning.
Lo llamaré si pienso en algo mas.
I'll call you if I think of anything else.
Dile que lo llamaré más tarde.
Tell him I'll call him later.