Adjectives describe a noun (person, place and thing).
Example 1: I am feeling very calm this morning.
Example 2: She was angry with her brother.
2. Verb “To Be”
The helping verb “to be” describes a state of being. “To be” acts as a linking verb, joining the sentence subject with a subject complement or adjective complement.*
|I am||It is|
|You are||We are|
|He/She/ is||They are|
Example 1: I am sad.
Example 2: We are thrilled!
*a word, phrase of clause that is necessary to complete the meaning of a given expression.