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.