He had worked late in the city every night of the two weeks since his return.

She has been working with him since the end of the 1980s.

Nearly 1,000 teachers, he said, have been working without pay since the end of May.

The system cost $250 million and has been working since May 2009.

No one has worked on the case full time since the spring.

He has worked in both television and film since 1983.

He has worked in film, television, and on stage since the 1950s.

She had worked there since 1995 and used to bring home about $300 a week.

He has worked in both film and television since the late 1990s.

She had been working in his Senate office off and on since 1967.