Formal:
* Tashi Delek: This is the most common and polite way to say goodbye, meaning "May good fortune be with you." It's often used in both formal and informal settings.
Informal:
* Da-da: This is a more casual way to say goodbye, similar to "see ya" or "later" in English.
* Ade: This is another casual way to say goodbye, similar to "bye" in English.
* Kadu: This is also a casual way to say goodbye, similar to "take care" in English.
Other options:
* Bhai-lai: This means "goodbye" and is more formal than "Da-da" or "Ade".
* Drekha: This means "see you later" and is a good option if you'll be seeing the person again soon.
Ultimately, the best way to say goodbye in Bhutanese depends on the situation and your relationship with the person.