 Using time expressions. Present We usually eat breakfast before my father leaves for work. Simple past Before my father left for work, we ate breakfast. We ate breakfast before my father left. After my father left for work, we ate breakfast. When my father left for work, we ate breakfast. As soon as my father left for work, we ate breakfast. When my father left for work, we were eating breakfast. While we were eating breakfast, my father left for work. We ate breakfast until my father left for work. Past perfect, past perfect continuous. We ate breakfast after my father had left for work. We had eaten breakfast before my father left for work. We had been eating breakfast when my father left for work. Future. Future continuous. Future perfect. We will eat breakfast after my father leaves for work. We will be eating breakfast when my father leaves for work. When my father leaves for work, we will have eaten breakfast. Present perfect, present perfect continuous. We have not eaten breakfast since my father left for work. We have been eating breakfast since my father left for work.