What is adjective
An adjective is used predicatively when a verb separates it from the noun or pronoun it describes:
The umpire was wrong.
The crowd was furious.
She seems tired today.
This soup tastes bad.
The dog’s coat feels smooth.
The verbs that can be completed by predicate adjectives are called being verbs or copulative verbs. They include all the forms of to be and sensing verbs like seem, feel, and taste.
qualitative: good, bad, happy, blue, French
possessive: my, thy, his, her, its, our, your, their
relative and interrogative: which, what, whatever, etc.
numeral: one, two, second, single, etc.
indefinite: some, any, much, few, every, etc.
demonstrative: this, that, the, a (an), such