I've tried for years to have a very simple model.

I've been trying for years now to keep her happy and it isn't working.

The family was never able to find the missing money, even though they had tried for years.

She has tried for years to make the top 24 and lost the last spot this season to a 15 year old.

She and Mike had tried for years to have children.

"We have been trying for years to get the city's attention."

She has tried for years to get me to do the same.

"A lot of people have been trying for years to get one."

Game companies have tried for years to get players to sweat.

Some American companies have been trying for years to make the transformation.