I found the same kind of question in this site, but the answers were not satisfying.
I read several papers on English left-dislocation, but all of them dealt with only left-dislocation of an NP, like (1b):
(1a) Her parents seem pretty uncaring. (non-dislocated version)
(1b) Her parents, they seem pretty uncaring. (left-dislocation)
So my question is: Is left-dislocation of a that-clause possible?
For example, can I change (2a) to (2b)?
(2a) I still can't believe that he's gone. (non-dislocated version)
(2b) That he's gone, I still can't believe it. (left-dislocation)