Yes, you would still use the conditional because that sentence uses the conditional. In your sentence, the conditional is "would do," so you would take the conditional mood of the verb "to do" in Spanish, which is «hacer»: «haría». There is another type of "would" used for imperfect in English. "Back in those days, we would do our homework so diligently." This is a repeated action in the past, so you would use the imperfect of the indicative mood of «hacer», which would be «hacíamos».