Which sentence has proper subject-verb agreement

To determine which sentence has proper subject-verb agreement, you need to analyze the subject and the verb in each sentence. Subject-verb agreement means that the subject and verb in a sentence must agree in number (singular or plural). Here are a few examples:

1. "He writes a letter." - This sentence has proper subject-verb agreement. The subject "He" is singular, and the verb "writes" is also singular. They agree in number.

2. "They write letters." - This sentence also has proper subject-verb agreement. The subject "They" is plural, and the verb "write" is also plural. They agree in number.

3. "She write a letter." - This sentence does not have proper subject-verb agreement. The subject "She" is singular, but the verb "write" is plural. To make this sentence grammatically correct, you would need to change the verb to its singular form: "She writes a letter."

By observing the subject and the verb in each sentence and ensuring they match in number, you can determine which sentence has proper subject-verb agreement.