something that will never happen
絶対に起こらないこと (zettai ni okoranai koto)
"He'll clean his room when pigs fly."
"彼は豚が飛ぶときに部屋を掃除するだろう。" (kare wa buta ga tobu toki ni heya o soji suru darou)
to work extremely hard
to make sure the team remains focused and organized
completely free; without worries
to establish dialogue or discussion
a student who is favored by the teacher
to criticize someone unfairly; to speak badly about someone