Look at these uses of L'Imparfait:
Note that one of the uses of L'Imparfait is to express actions that repeated in the past, or past habits (e.g. I would go every summer, I used to play, ...).
Note that in English you can use used to or would, but you can also use the Simple Past (i.e. I played) to express habits and repeated actions.
Other uses for L'Imparfait:
See also how to combine L'Imparfait and Le Passé Composé: Using Le Passé Composé on its own or with L'Imparfait
And to see how to conjugate in L'Imparfait: Conjugate regular verbs in L'Imparfait (imperfect tense) and Conjugate être in L'Imparfait (imperfect tense)