The phrase "added knowing that" is correct and usable in written English.
It can be used when indicating that something was included or mentioned with an awareness of certain information or consequences.
Example: "She added knowing that it would change the outcome of the discussion."
Alternatives: "included with the awareness that" or "mentioned with the understanding that".
The woman, he added, "knowing that she would be condemned to die," boldly admitted what she'd been up to.
"And this is very extreme theater," he added, knowing that his barely containable sense of adventure and risk needed to be tempered by a word of caution.
We could even get him medicines without your having to bring him to appointments here," I added, knowing that it took her an hour to get him dressed and into the car.
He added: "Knowing that my mom wants me out here playing golf is comforting.
She added, "Knowing that Sandy Hook Promise is trying to help others not feel what we feel gets me out of bed, motivates and drives me".
The man, whose name Mr. Lesher did not release to protect his privacy, added, "Knowing that this monster is still out there among children just adds insult to injury".
But never say never, friends make sure to add, knowing that Favre has tossed around the R-word frequently the last three seasons.
"We have great fun," Jagger adds, "knowing that we do some things that he didn't like, as well as some things that he did".
Corduroy coat, £55 Feel that Marc Jacobs influence again - the teardrop-shaped patches on the shoulder add knowing whimsy to something that is actually very sharply tailored.
Murray also has the added incentive of knowing that victory in London will secure his place as World No 2 at the end of the year, although Swiss legend Roger Federer can still have a major say in that battle as he is also in action in London this week.
What gives the book an added subtext is knowing that Mamet participates in the same system he so reviles.
