Decide whether the sentence is grammatically correct or incorrect as written. nunca compro nada en la juguetería. correct incorrect

This sentence is correct because compro is the correct conjugation of the verb comprar for the first person singular in the simple present. This sentence is a negation. So negation is an expression that means no and is used to contradict some or all of the meaning of a positive sentence. Unlike English, double negatives are acceptable in Spanish. So these two words are nunca (never) and nada (nothing). Finally:

Nunca compro nada en la juguetería (I never buy anything from the toy store)