Colloquial/Slang Casual Contraction: ている( = teiru)→てん ( = ten), ておく( = teoku) →とく ( = toku) March 28, 2016 30 Comments 「クッキー先生、起きてんの?」 = Cookie Sensei, Okiten no? = Is Cookie Sensei awake? 「寝てんじゃない?」 = Neten ja nai? = Isn’t he sleeping? Continue Reading