bear的過去式過去分詞？

例句

We followed the bear's tracks in the snow.

我們跟着熊在雪地上留下的足跡走。

The little boy cuddled the teddy bear close.

小男孩緊緊地摟着玩具熊。

You people without kids don't know you're born.

你們沒孩子，真是身在福中不知福啊。

Pressure was brought to bear on us to finish the work on time.

我們得按時完成工作，沒有迴旋餘地。

The pain was almost more than he could bear.

這種痛苦幾乎使他無法忍受。