First Grade English: Subject-Verb Agreement
In a healthy English sentence, words must live in peaceful harmony with one another. In particular, the subject of a sentence (the noun or pronoun doing the action) and the verb (the action itself) must agree on how many people or things are involved! If the subject is singular, the verb must wear its singular outfit. If the subject is plural, the verb must wear its plural outfit. In grammar, this harmony is known as subject-verb agreement. In this chapter, you will master the secret rules that keep subjects and verbs in perfect balance.
The Secret Balancing Act
Here is the most fascinating secret in first-grade grammar: nouns and verbs handle the letter S in completely opposite ways!
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| THE OPPOSITE 'S' SEESAW |
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| SINGULAR SUBJECT (No 's') <====> SINGULAR VERB (Needs 's')
| "The dog" "barks" |
| |
| Result: "The dog barks." (Perfect balance!) |
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| PLURAL SUBJECT (Has 's') <====> PLURAL VERB (No 's') |
| "The dogs" "bark" |
| |
| Result: "The dogs bark." (Perfect balance!) |
| |
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The Rule of One S
A wonderful first-grade guideline is the Rule of One S: in most simple present-tense sentences, only ONE of the partners gets the letter s! If the noun has an s (cats), the verb does not (play): "The cats play." If the noun does not have an s (cat), the verb takes the s (plays): "The cat plays."
Singular Subjects Require Verbs with -S
When a sentence is about ONE person, animal, or thing, the present-tense action verb must end in -s or -es.
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| SINGULAR SUBJECT AGREEMENT |
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| Subject (One) | Correct Verb | Sentence |
| --------------------+--------------------+-----------------|
| The boy | runs | The boy runs. |
| The bird | sings | The bird sings. |
| She | writes | She writes. |
| He | catches | He catches. |
| It | shines | It shines. |
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Pronouns: He, She, and It
Remember that the singular pronouns "he," "she," and "it" always demand a verb with an s! "He climbs," "She paints," "It ticks."
Plural Subjects Require Verbs Without -S
When a sentence is about TWO OR MORE people, animals, or things, the present-tense action verb uses its simple base form without any -s ending.
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| PLURAL SUBJECT AGREEMENT |
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| Subject (2+) | Correct Verb | Sentence |
| --------------------+--------------------+-----------------|
| The boys | run | The boys run. |
| The birds | sing | The birds sing. |
| We | write | We write. |
| They | catch | They catch. |
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The Special Pronouns: I and YOU
Even though "I" and "you" usually refer to one person, English treats them as special members of the base-verb club! You say: "I run" (not "I runs"), and "You walk" (not "You walks").
Agreement with IS and ARE
The helper verbs "is" and "are" also follow strict subject-verb agreement rules.
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| CHOOSING IS VS. ARE |
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| |
| Use I S for ONE person or thing (Singular): |
| - "The puppy IS playful." |
| - "She IS reading a book." |
| |
| Use A R E for MORE THAN ONE person or thing (Plural): |
| - "The puppies ARE playful." |
| - "They ARE reading books." |
| |
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The Ear Check for Agreement
When you write or read a sentence, say it aloud to yourself. Does "The dogs runs" sound smooth and natural? No! Your ears will immediately notice the clunky clash. Changing it to "The dogs run" restores the musical balance of the language.
Practice Exercises
Exercise 1: Choose the correct verb from the parentheses to complete each sentence in proper agreement: Sentence A: The red rooster (crow, crows) early in the morning. Sentence B: Three happy children (splashes, splash) in the warm pool. Sentence C: My mother (bake, bakes) delicious cinnamon cookies. Sentence D: The two black horses (trot, trots) down the quiet road.
Exercise 2: Fix the subject-verb agreement mistake in each sentence and write it correctly: The bees buzzes around the garden. The frog leap into the deep pond.
Exercise Solutions
Solution to Exercise 1: In Sentence A, "crows" is correct (one rooster crows). In Sentence B, "splash" is correct (three children splash). In Sentence C, "bakes" is correct (one mother bakes). In Sentence D, "trot" is correct (two horses trot).
Solution to Exercise 2: Rewritten correctly: "The bees buzz around the garden" (plural bees need buzz). "The frog leaps into the deep pond" (singular frog needs leaps).