had eaten是什麼時態

I got bad gas from something I had eaten.

那天我吃壞了肚子。

He had eaten no food that day. He began to want food.

他開始回家，那天他沒有吃東西。

He had eaten something cold, which made him throw up.

他吃了些涼東西，這使得他嘔吐起來。

The sea had eaten away much of the shore.

海水侵蝕了大片海岸。

I had eaten the apple when I went out to play.

出去玩之前我已經吃了蘋果。

He had eaten nothing since the night before;

從昨夜起，他還一直沒有吃東西。