I'm not a grammar expert, but I would say "there's a thing and I don't know what it is" or "there's a thing but I don't know what it is."
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I'm not a grammar expert, but I would say "there's a thing and I don't know what it is" or "there's a thing but I don't know what it is."