It's not for me [us] to judge.
((略式))私［私たち］は判断する立場にない
It's not over until the fat lady sings.
((米略式))完全に終わったわけではない
It's not that bad.
((略式))（人が言うほど）そんなにひどくはないさ
It's nothing.
大したことではない
It's now or never.
今を逃したら２度とチャンスはない
It's (only [just]) a matter [a question] of time.
（単に）時間の問題である
it's only [just, simply, merely] a question of doing
((略式))単に…すればすむ問題だ
(It's) six of one and half a dozen of the other
((略式))似たりよったり［五十歩百歩］だ
It's the business.
((英俗))すばらしい
It's [That's] the story of my life.
((略式))（不運を嘆いて）いつもこうなんだ
