Development has been ongoing since 2007 and it is supposed to be introduced in 2015.

Preparation and development work for the project had been ongoing since 2000.

A project to catalogue the collections has been ongoing since the 1960s.

These technical developments have been ongoing since the end of the 19th Century.

The best-seller list has been ongoing since April 9, 1942.

This partnership has been ongoing since the 2003-04 school year.

Several changes to the freeway are occurring, as this project has been ongoing since 2009.

Its development has been ongoing since the 18th century, making it the economic and cultural center of the region.

Her work in the sport for development field has been ongoing since the age of 16.

The related efforts to find a common legal framework here have been ongoing since 1989.