The author spent four years researching and writing the book.

The author spends four hours per day working on the website.

The authors spent 30 years collecting the material for the book.

An editor could go to work in the morning and discover that a stray author had spent the night there, not always alone.

When the book was first released, the authors had spent a cumulative total of 22 years living in the Netherlands.

The author spent years traveling through different parts of the Mediterranean to research this novel.

Ka'iulani and the author spent much time together on the estate.

The authors eventually spent three years working with the people of the neighborhood.

The 45-year-old author has spent his years under the death threat in hiding.

The author has spent the past ten years doing what he does well and making it better.