Have been following up

Grammar usage guide and real-world examples

The police have been following up on several tips, including some suggesting that Ms. Kirschhoch was being held captive in foothills to the east of Negril.

The arrest of the 27-year-old doctor in Brisbane came after Australian police were alerted by UK authorities thought to have been following up leads from phone records.

John Coffee, a professor of law at Columbia, said the investigators might have been following up on a lead provided by one of those people or by Mr. Faneuil, who has contradicted a version of events provided by Ms. Stewart and Mr. Bacanovic.

Since the 1980s, scientists at University College London have been following up the Whitehall Study to find out how stress at work leads to poorer health, and their latest study reveals that older men whose bodies have trouble returning to normal after a stressful event show the hallmarks of accelerated cellular ageing – which could put them at greater risk of heart disease.

The scammers have been following up with an another scam.

They have been following up with similar interviews with Duke students and local high-school students.

A spokeswoman says it has been following up the issue on a daily basis.

Gallagher and Harrison had been following up on ivory-bill sightings in preparation for a book Gallagher was writing.

Coincidentally, the Commons Public Accounts Committee has been following up a National Audit Office study of Gove's central-local administrative links.

So was Al-Quds Al-Arabi, the independent London-based pan-Arab daily which has been following up on the stories from the start.

2.39pm GMT Kate Hodal has been following up stories that an Italian man whose name is on the passenger list did not in fact get on the plane.