Interjection Politeness

Irregular Forms

Formal: If the interjection ends with j (j), drop the starting j of the suffix.
Casual: If the interjection ends with ç (ç), k (k), or n (n), add an e (e) to make the suffix -en.
Vulgar: If the interjection ends with ç (ç) or k (k), change the suffix to -æ (-æ).