Past Perfect / Past Perfect Progressive

Many refugees ________ their home countries before finding safety in a new land.

• had flee

• had fled

By the time she applied for citizenship, she _________ in the country for over ten years.

• had lived

• had living

Several countries __________ their most educated citizens due to the brain drain phenomenon.

• had losed

• had lost

Many settlers _________ homes and communities before the new regulations were introduced.

• had built

• had builded

Before the new policy, refugees ____________ adequate support from the local government.

• had not receiven

• had not received

Skilled workers ______________ to seek better opportunities abroad.

• had already emigrated

• had already emigration

The country __________ a significant brain drain before it took measures to retain talent.

• had experiences

• had experienced

By the time he received his naturalization certificate, he __________ all the necessary requirements.

• had completes

• had completed

The government ___________ new immigration policies before the crisis escalated.

• had been implemented

• had implemented

Local communities _____________ support to refugees before the official aid arrived.

• had been providing

• had been provided