Final answer:
The sentence 'Yo fui a Madrid todos los años' is grammatically correct.
Step-by-step explanation:
Yes, the sentence 'Yo fui a Madrid todos los años' is grammatically correct.
The subject 'Yo' (meaning 'I') agrees with the verb 'fui' (meaning 'went'). The preposition 'a' is used to indicate the destination, 'Madrid'. And the phrase 'todos los años' means 'every year'.
So, the sentence translates to 'I went to Madrid every year'.
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