Past Perfect Continuous

Derrick __________ (work) at the hospital for over two years before he left for Spain.​

I don’t think the place ____________ (function) well for a very long time before it shut down.

Jane __________ (sing) for an hour before her mom arrived.

_________________ (you/wait – interrogative) at the railway station for over two hours when the train finally arrived?​

How long _________________ (you/stand) there to meet the manager?​

The dogs ______________ (bark) continuously until the owner finally came home and fed them.​

My brother _____________ (ask) me to buy him a helmet for years before I could somehow make some money to buy him one.​​

They ______________ (live) in New York for four years when they had to leave due to personal reasons.​

He __________ (run) around for hours looking for my dog before I found him with my neighbour at the park.​

My cousins ______________ (suggest) that we called the police when we found the burglars.​