❶しかし, だが, けれども
small but powerful engines
♔基本small but powerful engines
小さいが強力なエンジン
⦣ 語＋but＋語.
She had a small but beautiful shop.
She had a small but beautiful shop.
彼女は小さいがきれいな店を持っていた.
You are young, but I am old.
♔基本You are young, but I am old.
君は若いが, 私は年を取っている.
⦣ 文＋but＋文. ふつうbut の前にコンマ（, ）をつける.
I love her, but she doesn't love me.
I love her, but she doesn't love me.
私は彼女を愛しているが, 彼女は私を愛していない.
The story is strange, but (it is) true.
The story is strange, but (it is) true.
その話は変だが本当だ.
Stay home and study.—But you said you would let me go!
会話Stay home and study.—But you said you would let me go!
家にいて勉強しなさい.—でも行かせてくれるって言ったじゃないか!
Excuse me, but what time is it now?
Excuse me, but what time is it now?
すみませんが今何時ですか.
⦣ Excuse me の後の but はほとんど意味が無い.
I'm sorry, but I can't help you.
I'm sorry, but I can't help you.
申し訳ありませんが, お手伝いできません.
❷not A but B でA でなくて B
He is not a police officer but a firefighter.
He is not a police officer but a firefighter.
彼は警官ではなくて消防士です.
I didn't go, but stayed at home.
I didn't go, but stayed at home.
私は行かないで家にいました.
