Final answer:
The sentence 'Tú soy vieja' is incorrect. The correct form is 'Tú eres vieja.'
Step-by-step explanation:
The sentence 'Tú soy vieja' is incorrect. In Spanish, the subject 'Tú' corresponds to the pronoun 'you' in English. The correct form of the verb 'to be' in the second person singular is 'eres'. Therefore, the correct sentence would be 'Tú eres vieja.'
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