The studies and work took place from 1819 until 1832.

Working 24 hours a day in season, the work could take five years.

The work took place between 1989 and 1992 at a cost of £3m.

The work of building a new Iraq will take time.

But since 1986, her work has taken a new turn.

But the work we have to do might take long enough.

For some local officials, however, the work was taking too long.

Our work to bring about change must take place in time.

Work started before the end of 1872, and took 30 months.

The work took 30 years to complete and cost £20,000.