YOU SAID:
time slows as class gets more boring
INTO JAPANESE
クラスが退屈になるにつれて時間が遅くなります
BACK INTO ENGLISH
Time gets slower as the class gets bored
INTO JAPANESE
クラスが退屈するにつれて時間が遅くなります
BACK INTO ENGLISH
Time gets slower as the class gets bored
You've done this before, haven't you.