1. Noun:
* Example: "The beginning of the movie was slow." Here, "beginning" is the subject of the sentence.
2. Gerund:
* Example: "Beginning a new project is exciting." Here, "beginning" is acting as the subject of the sentence, but it is also a verb in the gerund form.
3. Adjective:
* Example: "This is the beginning chapter of the book." Here, "beginning" modifies the noun "chapter."
4. Adverb:
* Example: "He began his speech by saying, 'Good morning.'" Here, "beginning" modifies the verb "began".
Therefore, to determine the correct grammatical category, you need to look at the context in which the word "beginning" is used.