* Simple Subject: The main noun or pronoun that performs the action of the verb.
* Compound Subject: Two or more nouns or pronouns joined by a conjunction (like "and", "or", "but") that act as a single subject.
Example:
* The big dog barked loudly.
* "The big dog" is the simple subject, even though it's two words.
Here are some other examples:
* My best friend loves to play soccer.
* The bright red car zoomed past us.
It's important to remember that the subject must be a single unit, even if it's comprised of multiple words.