Formal to Superior
Workplace · Reporting
You
先日お願いしました件について、その後いかがでしょうか？
せんじつおねがいしましたけんについて、そのごいかがでしょうか？
I wanted to follow up on the matter I mentioned to you the other day — how has it been coming along?
Romaji: Senjitsu onegai shimashita ken ni tsuite, sonogo ikaga deshō ka? / Reply Romaji: Ah, sore desu ne. Mō sukoshi jikan wo itadakemasu ka?
Reply
あ、その件ですね。もう少し時間をいただけますか？
あ、そのけんですね。もうすこしじかんをいただけますか？
Ah, that matter. Could I have a little more time?
Gesture & etiquette
Approach at a natural pause in their work; keep your tone light and collaborative, not supervisory; have any relevant documents ready so you can assist if they've hit a roadblock.
Framing a follow-up as '先日お願いした件について' (the matter I asked about the other day) avoids the accusatory tone of 'まだできていないんですか？' (Hasn't it been done yet?). Adding 'お手伝いできることがあればおっしゃってください' (let me know if I can help) further softens the check-in.