Function: It is used to describe an action that was completed before ANOTHER PAST ACTION.

Past perfect focuses on the RESULT of the action.

Example: She had finished her homework before her parents arrived.

Key expressions:

• Before

• After

• By the time

• Already

• Just

Function: It is used to describe an action that was ONGOING before abother PAST ACTION

Past Perfect Progressive focuses on the DURATION of the action

Example:

She has been studying for hours BEFORE she took a break

IMPORTANT: We need to pay attention on the order & duration of the eventes

KEY EXPRESSIONS

• For

• Since

• Before

• When

• Until

1. I had finished my homework before my mom got home.

2. She had visited Paris before she moved to London.

3. They had eaten dinner when we arrived.

Past Perfect Progressive

1. I had been studying for hours before I took a break.

2. She had been working at the company for five years before she quit.

3. They had been playing football before it started to rain.