いつになっても

expression

always; no matter how much time passes; still (after a long time)

Used when a situation or state persists despite the passage of time, often with a nuance of impatience or resignation. Common in negative or unchanged-state contexts.

• 彼かれはいつになっても連れん絡らくしてこない。

  He never contacts me, no matter how much time passes.

• この問もん題だいはいつになっても解かい決けつしない。

  This problem never gets solved, no matter how long it's been.