begin是瞬间动词，所以它的完成时态不能接表示一段时间的状语，如：The fi...，begin,单词记忆法、语法用法，与begin, 相关例句、名人名言

begin单词相关例句：

Disease, enemy, and debt --these three must be cut off as soon as they begin to grow. 病，仇与债这三者，一露苗头就砍掉。
The highest towers begin from the ground. 万丈高楼平地起.
If a man will begin with certainties, he shall end in doubts, but if he will be content to begin with doubts, he shall end in certaintics. 如果以肯定开始，必将以怀疑告终；如果愿以怀疑开始，必将以肯定告终。

When I see the American flag, I begin to sing the national anthem.
当我看到美国国旗，我开始唱国歌。


Now, let's begin to learn punctuation.
同学们来吧，一起来学习标点符号吧。


They were ready to begin the race.
他们准备好开跑了。

Please begin with this essay.

请从这篇文章开始。

Many townships in the coastal area have begin to industrialize.

沿海地区的许多乡镇已开始工业化。

Now let's begin our class.

现在开始上课。

The rain will begin in one week's time.

雨将在一个星期后开始下。