No no, bad dog

Is your dog's name No No Bad Dog?  If the only time you speak to your dog is to tell him what he is doing wrong, how does he know what he is supposed to do instead of the wrong thing?  Praise the dog whenever you catch him doing the behaviors you want, whether you have asked for that behavior or not.  Is he sitting next to you?  Praise him with "Good sit".  Is he lying down?  "Good down".  Then the dog will know what the desired behaviors are.  Rewarded behaviors will flourish will unrewarded behaviors will extinguish.