Think of it as a second name for the subject.
Here are some examples:
* My dad is a doctor. (Doctor renames "My dad")
* The city became a ghost town. (Ghost town renames "The city")
* She is the president of the company. (President of the company renames "She")
Key features of a predicate noun:
* It is always a noun or pronoun.
* It follows a linking verb.
* It renames or identifies the subject.
To find a predicate noun, ask yourself:
* What is the subject of the sentence?
* What verb is linking the subject to another word?
* What word is renaming or identifying the subject?
Understanding predicate nouns is essential for understanding sentence structure and grammar. It helps us to identify the key elements of a sentence and how they relate to each other.