The verb matches who is acting — Language, 7–10 years
Notice how the verb changes when one person acts or several people act, so the sentence is easy to follow.
The action word keeps count
The subject tells who or what the sentence is about, and the verb tells what happens. They need to fit together. In English, we say “The bird sings” but “The birds sing”; the ending or form helps the reader know whether there is one or more than one.
Why does the verb change?
A listener often hears the verb before knowing the whole situation. Its form gives an early clue about one actor or several actors, especially when the subject comes later or is far away. Agreement helps people follow the action instead of stopping to untangle the sentence.
Making the verb fit
Look at: “The dogs runs in the park.” First, find the subject: “dogs”, which means more than one dog. In English, a plural subject takes “run”, not “runs”. The corrected sentence is: “The dogs run in the park.”
Do not match the nearest word
A sentence may contain a nearby word that distracts you: “The basket of apples is heavy.” Because “apples” is plural, “are” can feel natural. But the subject is “basket”, one thing, so “is” is correct. This mistake is reasonable when words are packed together.
Clear messages need agreement
Agreement matters in messages, instructions and stories. “The key opens the door” tells you which thing does the opening; “The keys open the door” tells you there are several. Correct forms make warnings, plans and reports easier to understand at a glance.
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