Imperfect Tense

The imperfect tense serves to talk about past actions, conditions, or events that were : recurring habits, took place repeatedly, or were ongoing in the past. Additionally, it finds application in expressing time, discussing dates, indicating a person's age, and depicting past characteristics, conditions, and emotions.

​Imperfect tense is tricky because it can mean 1 of 2 things. It describes an action that was happening or an action that used to happen.
Example: yo trabajaba con Google en 2017
This could mean I used to work with Google in 2017 or I was working with Google in 2017. Based on the context the more accurate translation will be clear to you
Here is an example of imperfect tense used in a song.

The biggest tip for mastering imperfect is that the imperfect actions are always continuous actions in the past.