Watch the old interview on Youtube with Brucee Lee, he explains it is a formless form like water, it can take any shape and be anything. The movements in it are created to be adapted to each individual so no two people will perform the same way. We are to used to standard kartate or storefront karate schools that list, classify, and label every little thing and call it a requirement. Fighting is simply movement, not a set of pre-determined combinations, they should just be concepts allowing you to create your personal version of it.