Use 'begin' when you want to say that an action or event starts. It means the first part or moment of doing something.
I begin work at nine o'clock.
She will begin her homework soon.
Use 'begin' when starting to say or write the first words of something like a speech, book, or story.
He began his letter with a greeting.
The story begins with a boy and dog.
'Begin' can be used to describe starting an official event or ceremony with formality.
The president began the conference today.
They began the ceremony with a speech.
'Begin' means to start moving or traveling somewhere, showing the first step or action of a trip or walk.
They began their walk after breakfast.
We began the trip early morning.
Sometimes 'begin' means that something starts from a particular place or time, describing its origin.
This tradition begins in ancient times.
Her interest in art began from childhood.
