Final answer:
The correct imperfect verb to complete the sentence 'Todos los sábados, yo con mi familia' is 'hablaban'.
Step-by-step explanation:
For the sentence 'Todos los sábados, yo con mi familia', the correct imperfect verb to complete it would be 'hablaban'.
This is because the verb 'hablar' is conjugated as 'hablaban' when referring to 'yo con mi familia', which is a plural subject.
So the correct sentence would be 'Todos los sábados, yo con mi familia hablaban'.
Learn more about Spanish verbs