できればいいのに

I wish I could; if only I could

→ 出来る

phrase Rare #22,281

I wish I could; if only I could Expresses a wish or regret that something were possible. できれば means “if [someone] could do it,” while いいのに adds a sense of longing, disappointment, or regret. The subject is often omitted and understood from context.

JA: 私があなたを援助できればいいのに。

EN: I wish I could help you.

世界一周ができればいいのに。

I wish I could travel around the world.

私にユパさまのお手伝いができればいいのに

If only I could help Lord Yupa.

— 風の谷のナウシカ (1984)

彼に見せるためにできればいいのに

I wish I could do it so I could show him.

— ウィキッドふたりの魔女 (2024)

今パリにいることができればいいのに。

I wish I could be in Paris right now.

私があなたを援助できればいいのに。

I wish I could help you.