In those years, Partch began modifying guitars and violas.

They begin modifying the cylinders into a giant flamethrower.

The women, filled with hope for the first time, began modifying old clothes to fit the men.

More efficient oxygen systems became available for those needing it, and airlines began modifying their policies to provide for the disabled.

In 2005, the Board of Regents began modifying the mathematics curriculum.

In 1986, Ford began modifying its cars to limit the problem.

He began modifying conventional bicycles for off-road use in 1965.

The latter pair scuttle off to the side and begin modifying the ocean floor.

Being an inventive bunch, the riders began modifying their bikes to suit the terrain.

Once this was done, they began modifying it.