Bruce Lee listed 21 phases of progressive sparring:
lead jab only
lead hand only
lead hand and kick only
lead hand and kick v boxing
lead hand and kick v kickboxing
lead hand and kick v kicks only
jab v cross
boxing both
boxing v kicks
boxing v box and lead kick
boxing v kickboxing
boxing v lead kick
boxing and lead kick both
boxing and lead kick v kicks
boxing and lead kick v kickboxing
kickboxing both
add knees and elbows
add takedowns and throws
add grappling
kickboxing v grappling
boxing v grappling
