Final answer:
The correct imperfect verb that matches the pronoun 'nosotros' is 'éramos'.
Step-by-step explanation:
The correct imperfect verb that matches the pronoun 'nosotros' is 'éramos'. This form of the verb 'ser' is used to express actions or states that were ongoing in the past. For example, 'Nosotros éramos estudiantes en esa escuela' means 'We were students in that school'.
Learn more about Using the imperfect verb 'éramos' with the pronoun 'nosotros' in Spanish