But I spent a big portion of my life so far working toward it.

A good portion of the money has been spent on travel.

Each quarter we spend a portion of our science class time in research and development on a particular subject.

Richard spent a great portion of the afternoon looking for a place to sit.

"I spent a portion of my life under that system," he said.

He had spent a good portion of his evening sitting and staring at the fire.

I spent a good portion of my early career playing dances.

And they are likely to spend a significant portion of their time raising children.

Man may well have spent large portions of the last several million years living in small kin groups.

Few, though, spend such a large portion of their budgets on those programs.