To begin with, you will need to make a pattern by which the bend will be performed and only after that take up work. In order to easily bend drywall, it should be slightly moistened with water, but at the same time it should not get wet through. As soon as the drywall sheet gets wet a little, it will need to go through it with a special roller that has a sharp spikes. This will allow you to soften the material and then bend it into the form you need.