だったら

僕(ぼく)だったら、そうはしないな。

If I were you, I wouldn't do so.

僕(ぼく)だったら成り行きを見守るだろうけど。

If I were you, I would wait and see.

彼(かれ)ぐらいハンサムだったらいいのになあ。

I wish I were as handsome as he.

彼(かれ)は暇(ひま)だったら、魚釣りに行っていただろう。

If he had been free, he would have gone fishing.

僕(ぼく)だったらそんなずうずうしいことは言えない。

I wouldn't have the cheek to say such a thing.