日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
If only I could turn back time.
If you hadn't shown up, I'd have been done for.
There's no point in playing the what-if game.
I regret not being more careful.
I shouldn't have said that one thing.
That decision was our undoing.
If I'd known this would happen, I'd have prepared.
I can't help wondering about the road not taken.
If it had worked out, I wonder where I'd be now.
I could have done it if I'd really wanted to.
If only I'd been brave back then.
If only I'd stopped him then.