I know that gradings are done differently by nearly every school and every style, so I thought it would be interesting to see what everyone else does for their grading. In the style I practice we have 20 different forms including weapons forms. You start off at the beginning learning the very basic form, which you get graded on. Once you pass your first grading you learn the second form. For your second grading you have to perform both forms. This process continues with each grading having you do a new form, while also performing the ones you've already learned. Not only that but each time you grade at a new level you have to show an improvement in the forms you've already learned. I like this as it means you have to constantly practice and perfect the basics throughout your training, instead of just getting through the grading and forgetting the basics while you focus on the more complex forms.