When writing sentences the main verbs and pronouns must always agree in number with what part of sentence?

The main verbs and pronouns in a sentence must always agree in number with the subject of the sentence.

Here's why:

* Subject: The subject is the person, place, or thing that performs the action of the verb. It tells us *who* or *what* is doing something.

* Verb: The verb describes the action or state of being of the subject.

* Pronoun: A pronoun stands in for a noun (the subject).

Example:

* Subject: The cat

* Verb: sleeps

* Pronoun: It (refers to the cat)

The sentence would be: The cat sleeps. It is napping in the sun.

Key Point: If the subject is singular, the verb and pronoun must also be singular. If the subject is plural, the verb and pronoun must be plural.