Nouns and pronouns

Nouns and pronouns anchor most HESI A2 Grammar items, so a clean grasp of both pays off across the whole section, not just the questions that name them directly.

What a noun is, and its four types

A noun names a person, place, thing, or idea. The HESI splits nouns into four types, and the test likes to check whether you can tell them apart.

Type	What it names	Capitalised?
Common	a general person, place, or thing (nurse, clinic, chart)	No
Proper	the official, specific name (Sarah, Riverside Clinic)	Yes
Abstract	a quality or idea you cannot touch (patience, trust, urgency)	No
Collective	a group treated as one unit (team, staff, family)	No

What a pronoun is, and why the antecedent matters

A pronoun takes the place of a noun so you are not repeating it. The noun a pronoun stands in for is called its antecedent, and the HESI tests whether that antecedent is clear.

Here, "she" and "them" are pronouns, and "the technician" and "the samples" are their antecedents. Read the sentence again without the antecedents and it falls apart, which is exactly why a missing or unclear antecedent is a grammar error, not a style choice.

Vague reference. "The doctor told the intern that his notes were incomplete." Whose notes, the doctor's or the intern's? Rewrite it: "The doctor told the intern, 'Your notes are incomplete.'"

Personal pronoun case: subject, object, possessive

Personal pronouns change form depending on the job they do in the sentence. This is the case system, and it has three parts.

• Subject (nominative) case: the pronoun does the action. I, you, he, she, it, we, they.
• Object (objective) case: the pronoun receives the action or follows a preposition. Me, you, him, her, it, us, them.
• Possessive case: the pronoun shows ownership. Mine, yours, his, hers, its, ours, theirs.

The trickiest case on the exam is a compound subject or object, where two pronouns (or a noun and a pronoun) share a role.

A fast check: drop the other half of the compound and read what is left. "Me confirmed the dosage" sounds wrong immediately, so "I confirmed the dosage" is the form to keep in the compound.

Possessive pronouns take no apostrophe

This is a small rule with an outsized number of exam questions attached to it. Possessive pronouns (his, hers, its, ours, yours, theirs) are already complete words. Adding an apostrophe turns several of them into a different word entirely, usually a contraction.

Possessive word	Sounds like, but is not	That word actually means
its	it's	it is / it has
their	they're	they are
whose	who's	who is / who has
your	you're	you are

Say the sentence with the expanded contraction to check yourself: "the clinic updated it is intake form" makes no sense, so "its" is the word you want.

Nouns and pronouns rarely appear alone on the HESI. They set up the subject-verb agreement and reference questions later in this unit, so getting the four noun types and the three pronoun cases automatic now will make those next lessons faster.