Masculino y femenino en español: regla general

La regla general para la formación del masculino y del femenino en español es muy sencilla: - Palabras terminadas en -o : masculinas - Palabras terminadas en -a : femeninas-- Created using PowToon -- Free sign up at http://www.powtoon.com/join -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require. [Credit: robertintor, https://www.youtube.com/watch?v=ML2YROlcScg]