Well, to draw shadows on comic clothing, start by sketching the basic shape of the clothing. Then, imagine where the light is coming from and mark the areas that would be in shadow. Use shading techniques like cross-hatching or blending to create the effect.
The key to drawing shadows on comic clothing is observation. Look at real-life examples or reference photos to see how light interacts with different fabrics. Also, experiment with different pencil grades or digital tools to get the right darkness and softness of the shadows.