Mr. Greenspan and his colleagues, however, insist that they do not know.

Ms May's colleagues insist that there is no "smoking email".

But since your colleague insists on having you in tow wherever she goes, I must accept that you're here.

A colleague insists it's delicious, but I'm not sure I believe him.

But colleagues insist that, if anything, their femaleness is a help.

His colleagues in the booth are insisting that it is blue.

But Cameron and his colleagues insist that they need the money.

Mr. Daley's friends and colleagues insist it was an unfair shot.

But friends and colleagues insist that he has it.

However, his colleague had insisted on being led into battle, partially blind, by a helot.