【過去完成式】一次搞懂英文裡的「過去完成式」！
【過去完成式】一次搞懂英文裡的「過去完成式」！英文裡的「過去完成式」怎麼用呢？過去完成式表達的是過去某一時間或某一動作之前已經完成的動作。過去完成式通常用來表達過去發生的兩件事，先發生的用過去完成式，後發生的用過去簡單式來表達。
英文「過去完成式」的語法結構是：「had + V-p.p 過去分詞」，只要是你看到had + V-p.p（過去分詞），就是過去完成式囉。
下面列舉過去完成式的相關英文例句、用法，與中文意思，趕快學起來吧！
1. 過去完成式 = had + V-p.p 過去分詞
若句子出現「had + V-p.p 過去分詞」的結構，就是過去完成式囉！
句子裡的主詞有時候可能會省略縮寫，例：
I had = I’d
You had = You’d
We had = We’d
They had = They’d
He had = He’d
She had = She’d
It had = It’d
例：I had heard they were planning to move to Boston.
我聽說他們打算移居波士頓。
例：The plane had already taken off when she arrived at the airport.
當她到達機場時，這架飛機已經起飛了。
例：If I had known, I would have come home sooner.
我要是知道的話就早一點回家了。
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