Suppose I wrote something 5 months ago. 3 months ago I forgot I wrote what I wrote. How do I state this?
- I'd forgotten I ever wrote that
- I'd forgotten I'd ever written that
- something else entirely?
EDIT: Here's the complete sentence that got me thinking in the first place:
"Yeah, I found the answer some time ago, but by that point I'd forgotten I ever posted this question."
As you see, I forgot doesn't really work here (the act of forgetting occurs before the act of finding an answer, itself an action in the past).