training my german sheperd

Question
i cant get my dog to understand and he disobays me all i want him to do is obay  

Answer
Having a good pack structure reduces such problems.  The dogs see all the
people and dogs in the household as a pack with each having their own rank in
the pack and a top dog.  Life is much easier if the 2 legged pack members
outrank the 4 legged ones.  You can learn to play the role of top dog by
reading some books or going to a good obedience class. A good obedience class
or book is about you being top dog, not about rewarding standard commands with
a treat. Start at http://www.dogsbestfriend.com/  Besides the basic obedience, you eat first, go through the doorways first, reserve the best sleeping places for yourself, etc.