英文文法
過去完成式（Past Perfect）
用來表達某個過去動作發生在另一個過去動作之前。「She had already left when I arrived.」在敘事和說明中，要把事件的先後順序講清楚，這個時態不可或缺。
Subject + had + past participle
母語人士的真實例句
"She pointed to the death of Alison Lucer, to the hiring and firing of Tyler Timberlake, a white officer who had been charged with and acquitted of tasing an unarmed black man in Virginia."
Community Leaders React To Minneapolis Police Chief’s Resignation
怎麼運作
公式
Subject + had + past participle
這個頁面把課本規則和真實英文放在一起：每個例句都是來自真實母語人士的無腳本短片。你會聽到這個文法規則在真實生活中怎麼說，而不是在課堂上怎麼說。