already是什麼時態的標誌?

例句：

We've already said our goodbyes.

我們已經道別了。

The car was already on the move.

汽車已經開動了。

She's backpedalled twice already.

她已經兩次改變主意了。

Eight o'clock had already chimed.

已敲過八點鐘了。