'begins' is a verb that refers to the start of something, often a process or task. When used as a verb, it has both active and passive forms, and is usually followed by an object or with an adverb used to specify the start of something. For example, 'John begins the project tomorrow.' In passive form this verb is conjugated and should be used as 'begun.'
1. Lisa begins her day with a morning jog.
2. The play begins in just 5 minutes.
3. The negotiations began with an agreement on price.
begin is usually followed by an object when used as a verb, but can be used without an object when a sentence is required for a certain rhythm. When using begin, be aware of the context of the sentence. It can refer to something emotional, physical, or metaphorical.