[疑問文]What would you say to doing?
👨「…するのはどうですか？」と相手に何かをすることを提案する言い方です。
一方でWhat would you say to someone?だと文字通りに「誰々に何と言いますか？」という意味になります。
📖例文
- What would you say to taking a vacation in Kyoto?「休暇に京都に行くのはどう？」
- What would you say to moving to Hawaii?「ハワイに引っ越すのはどう？」
- What would you say to your 15-year-old self?「15歳のあなたへ何を言ってあげますか？」💡「your 15-year-old self」＝「yourself when you were 15 years old」