1
begin to do sth
常用于表示开始一个动作或过程，与begin doing sth 通常可互换。
She began to cry when she heard the news.
她听到消息时开始哭了起来。
开始；产生
began — past of begin · irregular form
先理解核心含义，再看它在真实句子里的用法。
开始；产生
To come into existence.
She began to cry when she heard the news.
她听到消息时开始哭了起来。
开始存在
To come into existence.
begin
Base
原形
begins
3rd person
第三人称单数
beginning
-ing
现在分词
began
Past
过去式
begun
Past participle
过去分词
The lesson begins at nine o'clock.
课程九点开始。
She began her career as a teacher.
她以教师的身份开始了职业生涯。
He has begun to learn Chinese.
他已经开始学习中文了。
不规则动词：过去式与过去分词需单独记忆
The concert begins at 8 PM.
音乐会晚上8点开始。
She began her new job last Monday.
她上周一开始了新工作。
They have already begun the meeting.
他们已经开始了会议。
常用于表示开始一个动作或过程，与begin doing sth 通常可互换。
She began to cry when she heard the news.
她听到消息时开始哭了起来。
强调动作的持续性，与begin to do sth 常可互换。
He began working on the project last month.
他上个月开始做这个项目。
表示以某事物作为开始。
The meeting began with a brief introduction.
会议以简短的介绍开始。
及物用法，直接跟宾语，表示开始某事物。
We will begin the lesson now.
我们现在开始上课。
Not this
I have began my homework.
Use this
I have begun my homework.
错误使用了过去式began代替过去分词begun。完成时态需要用过去分词形式。
Not this
The class begins from 8 o'clock.
Use this
The class begins at 8 o'clock.
表达时间点开始应用介词at，而不是from。from通常用于表示起点到终点的范围。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
开始做某事
She began to cry when she heard the news.
听到这个消息，她开始哭了起来。
以……开始
The meeting began with a short introduction.
会议以简短的介绍开始。
从……开始
The class begins at 9 a.m.
课程从上午9点开始。
重新开始
After the interruption, he began again from where he left off.
中断之后，他从停下的地方重新开始。
以做某事开始
I will begin by explaining the rules.
我将先解释规则。
首先；一开始
To begin with, let's review the basics.
首先，我们回顾一下基础知识。
重新开始
After the failure, they had to begin again from scratch.
失败后，他们不得不从头重新开始。
从头开始
Let's begin at the beginning and go through the whole story.
我们从头开始，把整个故事过一遍。
我该从哪里开始？讲述一段爱情有多么伟大。
From the song 'Theme from Love Story' (1971) by Andy Williams, used in the film Love Story.
出自安迪·威廉姆斯1971年演唱的歌曲《爱情故事主题曲》，电影《爱情故事》中使用。
我看着它重新开始。
From Taylor Swift's song 'Begin Again' (2012), about the hope of new love.
出自泰勒·斯威夫特2012年的歌曲《重新开始》，讲述对新的爱情的希望。
Use began naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象比赛开始（begin）时，裁判喊‘比金’（谐音），金牌争夺就此展开。
Register: mixed. Typical contexts: formal writing, speeches, academic contexts, daily conversation. Note: 虽然‘begin’与‘start’基本同义，但‘begin’通常用于较正式的场合或书面语，在日常对话中也常用，但稍显正式。
The stressed syllable of 'begin' rhymes with words ending in /ɪn/ like bin, chin, fin, kin, pin. Be careful: 'gin' ends with the same letters but is pronounced /dʒɪn/, not /ɡɪn/.
Dictionary facts from ECDICT, WIKTIONARY.