Some had been on the market for more than two years.

We've been on our feet for four hours without a break.

I told her to just be still, help was on the way.

You may be on your feet a good long while.

By then I've been on my feet for more than six hours.

Our children had been on the field for almost three hours.

We have a job to do no matter who is on the field.

The war is on and the military has a job to do.

The next month, he was on his way to Iraq.

Being on the field is better than where I was three years ago.

He had been on leave because of health problems since 2000.

The next three days she will be on call 24 hours a day.

I just need to be on my own for a while.

Like everyone else, I was on the outside looking in.

The first could be on the air before the end of the year.

About 58,000 of them have been on 10 or more.

The house had been on the market for about six months.

And most of our problems have been on the road as well.

We've just got to be on top of our game.

He is on the road 60 percent of the time.

Then at another turn she was on more open ground.

By the age of 16, he was on his own.

But our year's work is on the line right now.

I knew I'd be on the road half the season.

He had been on the force for three years, she said.