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Subject-Verb Agreement
The subject and verb must agree in number: singular subjects take singular verbs; plural subjects take plural verbs.
Why it matters: Agreement errors are among the most common grammar mistakes. Mastering this is crucial for grammatical correctness.
Main uses:
- Singular subjects take singular verbs
- Plural subjects take plural verbs
- Collective nouns
- Special cases: each, every, none, either/neither
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