The phrase "acknowledge that although" is correct and usable in written English.
It can be used when introducing a concession or a contrasting point in an argument or discussion.
Example: "I acknowledge that although the project faced several challenges, we ultimately achieved our goals."
Alternatives: "recognize that even though" or "admit that while".
Nevertheless, museums acknowledge that although prepared, they have to work doubly hard to remain secure.
It's too bad the movie can't acknowledge that although Detroit was late to rap, it was the birthplace of everything from Motown to the MC5 to Kid Rock.
"The key thing about these pictures is that they acknowledge that although breasts are sexual, they have another purpose besides," said Alison Baum, founder of Best Beginnings.
I don't want people to think I'm ungrateful, but I also have to acknowledge that, although I don't have a dream school, K.U. has never been at the top of my list.
Most scholars of color theory acknowledge that although our color likes and dislikes may have some innate basis a study by the Cambridge psychologist Nicholas Humphrey found that even rhesus monkeys tended to stick to a consistent order of preference (blue, green, yellow, orange, and red)—they are also subject to manipulation.
Even Clifford Slayman, the Yale biologist who signed the 2007 letter dismissing plant neurobiology, is willing to acknowledge that, although he doesn't think plants possess intelligence, he does believe they are capable of "intelligent behavior," in the same way that bees and ants are.
Vintage, a subsidiary of Occidental Petroleum, recently released a report acknowledging that although fracking actually took place the day after the video was shot, "small quantities of fluids" were discharged during fracking.
He begins his memoir disarmingly, by acknowledging that although he could be grandly called "the man who minted Bibles," he really is nothing more than the "dung that grew the flower," and thus his life requires the justification mentioned in the title.
The IELTS (2017) asserts that the test 'is interactive and as close to a real-life situation as a test can get', hereby acknowledging that although the test is administered via an OPI, which contains direct test tasks, it is still nonetheless an indirect performance-referenced test.
In attempts to distinguish himself from other artists and composer, G-Dragon admits to "giving twist and turn at every corner and evoking [a] different story" with each part of his music, acknowledging that although the chorus is the catchiest part of the song, he wants all the parts to his song to be remembered.
Mint officials have been closemouthed about the mistake, although acknowledging that one did happen.
