Final answer:
Subject-verb agreement ensures subject-verb consistency in sentences for clarity and understanding.
Explanation:
Subject-verb agreement refers to how both the subject and the verb must agree with each other in a sentence based on whether it is singular or plural. For example, if the subject is singular, then the verb must also be singular, and if the subject is plural, then the verb must also be plural. This grammatical rule ensures clarity and consistency in writing.
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