1. Past simple
1.1. We use the past simple for finished actions in the past.
1.2. Examples in affirmative
1.2.1. I ate ice cream yesterday.
1.2.2. My sister and I watched a movie last weekend.
1.3. Examples in negative
1.3.1. Yesterday I didn't connect to a class on time.
1.3.2. Last week I didn't exercise because it was cold.
1.4. Examples in questions
1.4.1. What time did you get up thus morning?
1.4.2. Did you play videogames yesterday?
2. Past continuous
2.1. We often use the past continuous with "while" for two actions happening at the same time.
2.1.1. Also, to talk about an action in progress at a specific time in the past.
2.2. Examples in affirmative
2.2.1. While I was doing my homework, my sister was playing.
2.3. Examples in negative
2.3.1. It wasn't raining yesterday evening.
2.3.2. I wasn't washing the dishes when my phone rang.
2.4. Examples in questions
2.4.1. Were they studying math yesterday?
2.4.2. Was she reading the book when they came?
3. Past perfect
3.1. We use the past perfect when we are talking about the past and we want to talk about an earlier past action.
3.2. Examples in affirmative
3.2.1. When my dad arrived, they had gone out.
3.2.2. When I turned on the TV, the match had already finished.
3.3. Examples in negative
3.3.1. I hadn't washed my clothes before my mom came.
3.3.2. I went there after I had completed the task.
3.4. Examples in questions
3.4.1. Had they been married when I was born?
3.4.2. Had she spoken Spanish until she went to Mexico?