"Excuse me, I would like to check whether you have an item in stock."
"Excuse me, do have 〇〇 in stock?"
- "Excuse me, I would like to check~" 「〜を確認したい」
"excuse me~" 「すみませんが〜」
"item" 「商品」
"whether you have ~" 「〜があるかどうか」
"in stock" 「在庫がある」
- "Excuse me, do have 〇〇 in stock?" 「〇〇は在庫がありますか?」