Sometimes it takes a lot of patience to housetrain a puppy. It will not happen overnight, and some will take longer than others to grasp the idea. Stick with it and it will come together. Make sure you know what you want your puppy to do to go outside. Some people want their dogs to speak to go in and out for example. You should be teaching him what you want if you want something specific. Harmony and Asher stands at the backdoor waiting. If I don't notice them, they come to nudge me and let me know they have to go. They did that on their own. Doodle on the other hand paces frantically. When he has to go, he has to go. He waits until the last minute.