The international work has been going on since the end of the 1980s.

We've gone through a major change of government since then.

This war has been going on since the early 1980's.

It was the first time they went 3-0 since 1985.

The debate has been going on at least since the early 19th century.

The battle has been going on since the beginning of the year.

It would be interesting to know how many people have gone a little bit further into the world of children's books since then.

Three production lines have been closed and 1,100 workers let go since last year.

They also came into the game hoping to go 8-0 at home for the first time since the 15-1 season of 1998.

I also know that those same companies are going through a difficult period, particularly since 11 September 2001.