stop的過去式和過去分詞是什麼

例句：

We had to stop every few miles.

我們每走幾英里就得停一停。

She brought the car to a stop.

她停住汽車。

He was headed for the bus stop.

他朝公交車站走去。

They bellowed at her to stop.

他們吼叫著讓她停下。

We stop growing at maturity.

我們在成熟後就停止成長了。