it was all gilbert keller could do not to take her in his arms and hold her and tell
her that he loved her and everything was going to be all right.

해석이 어떻게 되나요?

not to 이하가 진주어인가요?

즉,~~ ~ 하지 않는 것이 길버트가 할 수 있는 모든 것이었다 로 해석하면 될까요?