The phrase "acknowledge then" is correct and usable in written English.
It can be used to indicate that one should recognize or accept something before proceeding to the next point or action.
Example: "Before we move forward with the project, we must acknowledge then the concerns raised by the team."
Alternatives: "recognize first" or "accept then".
We listen, acknowledge, then gently move the conversation forward".
So you acknowledge, then, that your competition goes beyond game consoles?
Yes, he's a fine lad, the old folk would acknowledge, then help themselves to another biscuit..
Aaron Swartz Case Deepens [Lessig Blog V2] –MIT's report on fallen hacktivist, Aaron Swartz, exonerated the university for most wrong doing, but found that MIT never thought Swartz hacking was "unauthorized" –"If indeed Aaron's access was not "unauthorized" — as Aaron's team said from the start, and now MIT seems to acknowledge — then the tragedy of this prosecution has only increased.
Capitalize on your weakness; acknowledge then and see to it how you can be turn them into opportunities.
It was generally acknowledged then that "Evita" showed little depth as either a study in politics or a character portrait.
Mr. Posada denies the charges, but in the past acknowledged — then recanted — organizing 1997 bombings at Havana hotels.
He acknowledged then, and since, that both parties would have to make changes to bring down the growing long-term costs of the government health programs.
Fighters attacking the embassy acknowledged then that they belonged to Ansar al-Shariah, although they said there were other unarmed protesters joining them.
Region-wide, he acknowledged then, "practically all of our people freely express the idea that these animals are a problem and are unwanted.
"We brought in Ivan for a reason," she acknowledges, then adds that she would hate to see him lose the aspects of his game that make him unique.
