I've been training DD's dog.
Down-stay, come, and heel. Smart dog!
If you want to have some fun, train the dog to respond to commands in Swedish.
I used to have a friend who trained his Akita dog to only respond to commands in Japanese, and another friend who trained his German Shepherd to only respond to commands in German.
It was fun to watch people trying to get the dogs to do things in response to English commands after they were told how smart the dogs were.