No breed is impossible to obedience train, but novice owners might find training some breeds quite difficult. The capacity to learn basic obedience—and even complicated behavior—is inherent in all dogs. Some breeds may require more patience or creativity in training than others. Individual dogs that exhibit fearful or anxious behaviors should also be handled with greater care, and especially not trained using harsh corrective methods, as this training can be psychologically harmful to the dog and result in further behavioral issues.
Dog intelligence is exhibited in many different ways, and a dog that might not be easy to train might nonetheless be quite adept at figuring out how to open kitchen cabinets or to escape from the yard. Novice dog owners need to consider a dog's trainability as well as its energy level, exercise requirements, and other factors before choosing a new pet. Very high intelligence is not necessarily a good thing in a companion dog, as smart dogs can require extensive daily mental stimulation if they are not to become bored and destructive.
Unless you plan to keep your dog outdoors--and few of us do because it's not recommended--you'll need to teach your dog where to eliminate. Therefore, house training (also called housebreaking or potty training) is one of the first things you need to work on with your dog. Crate training can be a very helpful part of the training process. This includes house training as well as many other areas of training: