Ronaldo
Manchester United
Real Madrid
Ronaldo had played for Manchester United before he played for Real Madrid.
10am meeting
10:15am arrive
The meeting had started before I arrived.
Live
T-Rex
Stegosaurus
The stegosaurus had lived before the T-Rex lived/did.
Summer
London
Beijing
Before London hosted the Olympic games, Beijing had hosted it in 2008.
UK June
Russia October
Before I was in Russia, I had been to the UK.
Found (to start something)
The UK / Oxford University
The Aztecs / country
The UK had founded Oxford University before the Aztects founded their country.
Football
Germany
France
Before France won the world cup in 2018, Germany had won it in 2014.
last night toothache (tooth pain)
yesterday afternoon candy
I had eaten candy before I had toothache.
Build
The Pyramids
The Great Wall of China
Before China built the Great Wall, Egypt had built the Pyramids.
Tennis balls
White
Yellow
Tennis balls had been white before they were yellow.
May to have my baby
March to lose my job
Before I had my baby, I had lost my job.
Invent
Mr Otis / elevator
Mr Daimler / motorcycle
Mr Otis had invented the elevator before Mr Daimler invented the motorcycle.
The UK / Invent
Rugby
Football
The UK had invented football in 1823, before they invented rugby.
4 hours ago strange smell
10 hours ago my cat / kill / bird
My cat had killed a bird before I smelled the strange smell.
Invent
they / plastic
they / penicillin
They had invented plastic before they invented penicillin.