Answer:
The "imperfect progressive" tense is formed using the formula below:
imperfect indicative conjugation of estar + present participle of verb = imperfect progressive
The present participle (gerund) is formed with the stem of the verb plus -ando (for -ar verbs) or -iendo (for -er and -ir verbs). For example:
hablar ---> hablando (talking)
comer ---> comiendo (eating)
vivir ---> viviendo (living)
Explanation:
