It is extremely small of you to even take that stance.
そんな態度までとるとは見下げたものだ
It is fitting for him to do so.＝It is fitting that he (should) do so.
彼がそうするのは適当だ
It is for you to decide whether or not you want to join a union.
君が組合に入りたいのかどうか決断すべきだ
It is frightening to think that he could be my boss.
彼が上司になるかもしれないと思うとぞっとする
It is futile to try to do so.
そうしようとしてもむだだ
It is generally agreed that pollution should be reduced.
汚染改善の一般的な合意がある
It is getting dark.
暗くなってきた
It is good practice to make backup copies.
バックアップを取っておくことはよい習慣だ
It is hard living [to live] in that city.
その町は住みにくい
It is hard to do two things at once.
１度に２つのことをするのは難しい
