Final answer:
The correct conjugated form of the verb for the sentence 'Rodrigo y yo (completar) la tarea' is 'completamos'.
Step-by-step explanation:
The correct conjugated form of the verb for the sentence 'Rodrigo y yo (completar) la tarea' is 'completamos'. When 'Rodrigo y yo' is the subject, it corresponds to the Spanish pronoun 'nosotros' in the first person plural. Therefore, for the verb 'completar', we add the corresponding ending '-amos' to match the subject, resulting in 'completamos'.
Learn more about Verb conjugation in Spanish