A slide show with an English speaker that will walk you through conjugating in the imperfect tense: berks.psu.edu/Spanish
Imperfect Tense Conjugation Practice
https://conjuguemos.com/activity.php?language=spanish&id=11&source=public&type=verbs
Imperfect Tense Conjugation Practice
https://conjuguemos.com/activity.php?language=spanish&id=11&source=public&type=verbs