begin的現在分詞和過去式是什麼

begin例句

The project is beginning to show results.

這項工程開始顯出成效。

I was beginning to think you'd never come.

我開始以為你是不會來了。

The pressure of work is beginning to get to him.

工作的壓力使他煩惱起來。

We began work on the project in May.

我們於五月份啟動了這項工程。