Correlative Conjunctions (Either/Or, Neither/Nor): Fifth Grade English Student Guide

Correlative conjunctions work in inseparable pairs to link grammatically parallel words, phrases, or clauses, demanding balanced sentence architecture and rigorous subject-verb agreement.

The Nature of Conjunction Pairs

Correlative conjunctions travel in pairs. Unlike coordinating conjunctions that stand alone between elements, correlative conjunctions frame the elements they connect, creating an elegant, balanced rhythm in formal writing.

+--------------------------------------------------------------+
|              PRIMARY CORRELATIVE CONJUNCTION PAIRS           |
+------------------------------+-------------------------------+
| PAIR                         | FUNCTION                      |
+------------------------------+-------------------------------+
| Either . . . or              | Connects two alternatives     |
| Neither . . . nor            | Connects two negative choices |
| Both . . . and               | Emphasizes two positive items |
| Not only . . . but also      | Adds emphatic second element  |
| Whether . . . or             | Explores two possibilities    |
+------------------------------+-------------------------------+

The Rule of Parallel Structure

The most critical stylistic rule when using correlative conjunctions is parallel structure. Whatever grammatical structure follows the first conjunction must match the grammatical structure following the second conjunction. If an infinitive verb follows "either," an infinitive verb must follow "or." If a prepositional phrase follows "not only," a prepositional phrase must follow "but also."

+--------------------------------------------------------------+
|                  PARALLEL STRUCTURE AUDIT                    |
+--------------------------------------------------------------+
| FAULTY: Elena decided either [to study biology] or [pursuing |
|         chemistry]. (Infinitive vs. Gerund)                  |
+--------------------------------------------------------------+
| BALANCED: Elena decided either [to study biology] or         |
|           [to study chemistry]. (Infinitive vs. Infinitive)  |
+--------------------------------------------------------------+

Subject-Verb Agreement with Correlative Conjunctions

When correlative conjunctions link two subjects of a verb, determining whether the verb should be singular or plural depends on which conjunction pair is used.

+--------------------------------------------------------------+
|               CORRELATIVE AGREEMENT FORMULAS                 |
+------------------------------+-------------------------------+
| "Both . . . and"             | Always PLURAL verb            |
|                              | Both the cat and dog are asleep|
+------------------------------+-------------------------------+
| "Either...or" / "Neither...nor"| Verb agrees with the        |
|                              | CLOSEST subject               |
|                              | Neither the coach nor the     |
|                              | players [were] ready.         |
|                              | Neither the players nor the   |
|                              | coach [was] ready.            |
+------------------------------+-------------------------------+

The Proximity Rule in Practice

When using "either...or" or "neither...nor," look at the subject noun located closest to the verb. If the closest subject is singular, the verb is singular: "Either the captain or the pilot decides the flight path." If the closest subject is plural, the verb is plural: "Either the pilot or the flight attendants inspect the cabin."

Exercises and Solutions

Exercise 1: Correcting Parallel Structure. Identify the parallel structure flaw in the following sentence and rewrite it correctly: "The young naturalist not only enjoyed cataloging rare plants, but also to photograph woodland birds."

Solution 1: The flaw is that "not only" is followed by a gerund phrase ("cataloging rare plants"), while "but also" is followed by an infinitive phrase ("to photograph woodland birds"). To achieve parallel structure, both elements must share the same form: "The young naturalist enjoyed not only cataloging rare plants, but also photographing woodland birds."

Exercise 2: Subject-Verb Agreement with Proximity. Select the correct verb in parentheses and explain your choice based on the proximity rule: Sentence A: "Neither the commander nor the soldiers (has / have) retreated from the outpost." Sentence B: "Either the trumpet players or the conductor (signals / signal) the final chord."

Solution 2: In Sentence A, the correct verb is "have" because the subject closest to the verb is the plural noun "soldiers." In Sentence B, the correct verb is "signals" because the subject closest to the verb is the singular noun "conductor."