Final answer:
The sentence 'Nunca compro nada en la juguetería' is grammatically correct in Spanish.
Step-by-step explanation:
The sentence Nunca compro nada en la juguetería. is grammatically correct in Spanish. It translates to I never buy anything at the toy store. The sentence is composed of the subject yo (I), the negation nunca (never), the verb compro (buy), and the direct object nada (anything).
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