What are subjects of sentences?

The subject of a sentence is the noun or pronoun that performs the action of the verb. It's the who or what that is doing something.

Here's a breakdown:

* What is a noun? A noun is a word that names a person, place, thing, or idea. Examples: dog, school, happiness, John

* What is a pronoun? A pronoun is a word that replaces a noun. Examples: he, she, it, they, we

Let's look at some examples:

* The cat chased the mouse. (The subject is "cat" because it's doing the chasing)

* She went to the store. (The subject is "she" because she's the one going to the store)

* The sun shines brightly. (The subject is "sun" because it's doing the shining)

Finding the subject:

1. Identify the verb: What action is happening in the sentence?

2. Ask "who or what" before the verb: This will help you find the noun or pronoun that's performing the action.

Important points to remember:

* The subject can be singular or plural.

* The subject can be one word or a group of words.

* The subject often comes before the verb, but not always (especially in questions).

Let me know if you'd like more examples or have any other questions!