The decision to develop the Pearl goes back about three years.

But the fact is he's gone back and forth now for about four years.

The story goes back about 550 years, when the Mughals were ruling the country.

Go back about 4.6 billion years and you wouldn't find the Earth.

It went on like that for more than three decades, about 20 years of which she was living with Clarence.

This program has been going for about 5 years in 20 cities.

His family goes back about three hundred years in the commonwealth.

The shop is postwar, but the family business goes back about 300 years.

We're going back about two hundred years on every front.

However, history goes about 3 years further back than that.