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am的過去式和過去分詞是什么

回答
瑞文問答

2021-08-18

am的過去式:was;
am的過去分詞:been;
was
vt. 是;在(am、is 的過去式)。
been
v. 是,有(be的過去分詞)。
n. (Been) (美)貝恩(人名)。

擴展資料

  例句:

  I was aware that she was trembling.

  我察覺到她在發(fā)抖。

  He was rowing for all he was worth.

  他在拼命地劃船。

  It was a Monday, so she was at home.

  那是個星期一,所以她在家。

  What've you been up to?

  你一直在搞什么名堂?

  You've been very kind.

  你真是體貼入微。

  Progress has been particularly disappointing.

  進展一直格外令人失望。