ACT English Agreement: Subject-Verb and Pronoun Rules

The ACT English test gives you 50 questions in 35 minutes, and agreement errors show up across many of them. Subject-verb agreement, pronoun-antecedent agreement, and verb tense consistency each test one skill: matching two parts of a sentence correctly. The test hides the match by putting words between the two parts, so the wrong answer sounds right on a quick read. Learning to find the real subject, the real antecedent, and the real timeline fixes all three question types at once.

ACT groups these rules under the Usage subcategory of the Conventions of Standard English reporting category, worth 38 to 43 percent of your English score. The official test description page does not name subject-verb agreement, pronoun agreement, or verb tense as separate labeled topics. Treat this guide as a breakdown of the grammar rules tested under Usage, not an ACT-published list. The rules below are standard English conventions, and the English passages apply them in every paragraph.

How Agreement Fits Into the English Test

Conventions of Standard English shares the English test score with two other reporting categories. All three categories draw from the same 50 questions, and each one reports a separate percent score. Agreement sits in the first row, inside Usage. The table below sets out every category, its weight, and its subcategories.

Subject-Verb Agreement with Intervening Phrases

A verb agrees with its subject in number: a singular subject takes a singular verb, and a plural subject takes a plural verb. The English test hides this rule by placing words between the subject and the verb, so a wrong match sounds correct. Your first move on any underlined verb is to cross out everything sitting between it and the subject. Read the bare subject and the verb together, then check the number.

Prepositional Phrases and Interrupters

A prepositional phrase attached to the subject never changes the verb. Ignore everything between the preposition and its object, then match the verb to the subject in front of it. The same rule applies to interrupters set off by commas, including phrases starting with along with, as well as, in addition to, and together with. These phrases add detail, not a second subject.

Compound Subjects

Two subjects joined by and take a plural verb. Two subjects joined by or or nor take a verb matching the subject nearer to it, not the subject farther away. Word order decides the answer in the or and nor case, so read the noun sitting right before the verb. Reversing the two nouns in such a sentence flips the correct verb from singular to plural.

Collective Nouns and Indefinite Pronoun Subjects

A collective noun such as team, family, or committee names one unit and takes a singular verb when the group acts together. Indefinite pronouns such as each, everyone, everybody, someone, nobody, either, and neither are singular subjects, regardless of what follows them in the sentence. A phrase like each of the players still takes a singular verb, because each is the subject and of the players is a prepositional phrase riding along behind it.

The table below applies these rules to full sentences. Every row gives the correct verb and the reason behind it. Cover the middle column, pick your own answer first, then check it.

Pronoun-Antecedent Agreement and Case

A pronoun must match its antecedent in number and gender. It must also take the right case for its role in the sentence. Number errors and case errors look nothing alike on the page, so check both whenever a pronoun is underlined. Start by naming the antecedent out loud, because a pronoun with no clear antecedent is its own error type.

Number Agreement with Antecedents

Singular antecedents need singular pronouns, and plural antecedents need plural pronouns. Indefinite pronouns such as each, everyone, and neither stay singular even when the sentence feels plural, so pair each one with a singular pronoun, as in Each of the runners packed her own water bottle. A plural antecedent pairs with a plural pronoun instead, as in The players packed their own water bottles. Collective nouns behave the same way here as they do with verbs: one committee takes it, several committees take they.

Case: Subject Pronouns vs Object Pronouns

Use a subject pronoun (I, he, she, we, they, who) when the pronoun performs the action. Use an object pronoun (me, him, her, us, them, whom) when the pronoun receives the action or follows a preposition. Paired names cause the most errors, as in between you and me, where me follows a preposition. Drop the other name from the pair and read the sentence again to hear the right form. The table below lists both sets with an example of each.

A comparison such as than he or than him hides a second verb. Say the missing verb out loud to find the right case: she runs faster than he does, not than him does. The same swap settles who against whom: put he or him in the slot, then use who where he fits and whom where him fits.

Vague or Ambiguous Antecedents

A pronoun needs one clear antecedent. When two nouns both fit the pronoun, rewrite the sentence with a specific noun in place of the pronoun instead of guessing. For example, When Maria called Sarah, she was already on the bus leaves the reader unsure who was on the bus. When Maria called Sarah, Maria was already on the bus removes the doubt. An answer choice repeating the vague pronoun stays wrong even when the grammar around it is clean.

Verb Tense Consistency and Sequencing

A sentence or passage keeps one timeline unless a time marker signals a shift. The English test flags verbs switched to the wrong tense for no reason. Read the verbs in the sentences before and after the underlined one, because those set the timeline you have to match. Tense answers come from the surrounding context, never from the underlined verb alone.

Keeping One Timeline

Verbs describing actions in the same time frame stay in the same tense. She opened the door and sees her friend mixes past and present for no reason. She opened the door and saw her friend keeps both verbs in the past. Story passages usually run in the past, and explanatory passages usually run in the present. Match the underlined verb to the tense the rest of the paragraph is already using.

Time Markers That Signal a Shift

Words such as since, before, after, by the time, already, and yet mark a different point in time, so they signal a shift to a different tense. By the time the bell rang, the students had finished the test uses had finished, the past perfect, because finishing happened before an earlier past event, the bell ringing. With no marker like this in the sentence, a mid-sentence tense change is an error. The perfect tenses exist to put two moments in order, so reach for them only when the sentence names two moments.

Tense Pairs the Test Repeats

Two pairs cover most tense questions: simple past against past perfect, and simple present against present perfect. The split inside each pair is about order, not about how far back the action sits. The table below shows the form to use and the signal telling you to use it.

Past perfect needs a second past action nearby to sit before. Present perfect needs a link to now, usually signaled by since, for, or already. When one action stands alone and no marker points to another moment, the simple tense wins. Sequencing questions come down to this order test, so name both actions before you pick.

Common Agreement Traps in Longer Sentences

Long sentences hide the subject-verb link the test is checking. These five patterns are the ones long sentences hide most often. Learn the shape of each one, then apply the rule from the matching section above. The list below names every pattern and what goes wrong inside it.

• Subject buried in a long phrase. A descriptive phrase sits between the subject and the verb, pulling attention to the wrong noun.
• Compound subject shifting from and to or. Switching the connector changes which noun the verb needs to match.
• Pronoun referencing an earlier noun. The pronoun points back to a noun from an earlier sentence instead of the nearest matching noun.
• Comparison left unfinished. A dropped verb after than or as hides which pronoun case the sentence needs.
• Tense shift with no time marker. The verb switches tense with no since, before, or after nearby to justify the change.

Practice ACT Agreement Questions

Reading the rules is the first step. Spotting them fast under time pressure is the skill the test measures, and repeated practice builds this speed. Work one rule at a time until the pattern is automatic, then mix all three together. Timed full-length sections come last, once single-rule questions stop slowing you down.

Our free drills split practice by rule: the Subject-Verb Agreement drill, the Pronouns drill, and the Verb Tense & Form drill. Every set is free and untimed, with instant explanations, and no signup is required. For every other English category, see our ACT English section guide. For the punctuation rules under the same reporting category, see our ACT English punctuation rules guide. For full-length practice under the timed clock, use our ACT exam page.

Sources

• ACT: The ACT Test
• ACT: Description of the English Test