You will be given a situation. Come up with a cause and an effect of the situation, then make a grammatically correct sentence using the past perfect for each. We will do this in groups of 3.
I had a fight with my sister last month
Cause: I had a fight with my sister last month because she had borrowed my bike and scratched it.
Consequence: I had had a fight with my sister, and so I didn't talk to her for three days.