Shapes of Covalent Molecules (molecular shapes) - VSEPR Theory - This is an updated video of an earlier one I made. You'll find it is a great way to learn how to predict the shapes of covalent molecules. You'll be introduced to the shapes tetrahedral, linear, bent, trigonal pyramidal and trigonal planar. Molecular shapes are predicted by the VSEPR Theory, Valance Shell Electron Pair Repulsion Theory.As you watch the video, try to predict what the shapes of the molecules will be. I truly hope it helps you learn the topic. Peace.