The phrase "finished delivering" is correct and usable in written English.
You can use it to refer to a situation where an action has been completed. For example, "The deliveryman finished delivering the package to the customer."
"I'd just finished delivering a lecture at the university on liberalism and tolerance".
12.14pm: Brown has just finished delivering a good, old-fashioned, tub-thumping speech in Bradford.
The jury was expected to begin deliberations today after Judge Leonard B. Sand finished delivering his instructions.
Even before Rubio finished delivering his stump speech, an A.P. photographer plunked down on the floor, opened his laptop, and began cropping a shot.
Before the president had finished delivering his speech, the National Federation of Independent Business, the conservative-leaning small-business lobbying group, panned it as "more of the same" in an e-mailed statement.
We hacks ate while Ahmadinejad finished delivering his message at the U.N. Ahmadinejad arrived at the Warwick a little after two, dressed, as always, modestly, as if he were an assistant agricultural secretary from the provinces.
The trams were ordered in 1979 after the 1977 decision to not close the tramway, after the SM53 were finished delivered in 1958.
-Two plainclothes police officers in West Philadelphia shot a food delivery guy on Tuesday night, leaving him in critical condition.The cops were responding to another shooting when they encountered Philippe Holland, clad in a hoodie and having just finished delivered a cheeseburger.
Dom unfolded them and discovered his father's toast, the one he'd failed to finish delivering a few nights earlier.
ATLANTA — Newt Gingrich on Thursday became the first major Republican to begin raising money for the 2012 presidential race, but he stopped short of declaring his candidacy until he finishes delivering paid speeches this month and distances himself from a web of business ventures that would interfere with a campaign.
Nevertheless, on October 24, 1861, with the simple connection of two telegraph wires, the East and West coasts were joined with instant communications, and the Pony Express announced its closure two days later (though it continued service into November to finish delivering the mail in its possession).
