No, actually, the paradigms are:
- lie - lying - lay - lain
- lay - laying - laid - laid
It’s a difference in transitivity.
- I lay the fork on the table. (present transitive)
- The fork lies/is lying on the table. (present intransitive)
- Yesterday I laid the fork on the table. (past transitive)
- Yesterday the fork lay on the table. (past intransitive)
Ah, got it. I guess I was taught when I was young that moveable things cannot lie, I see now that was an oversimplification to avoid some of the more common missuses. "The fork is lying on the table" still sounds weird, it is like "I am knowing who stole my copper wire." I think it has to do with lie being a stative verb in this context, with the continuous tense it seems like I have a dishonest fork.
Yeah, my American friend said she’d been taught the same thing. But I mean, in spoken language these usages merge anyway, but we try to keep them apart in the course and in the written language.
Also as you say, it’s stative so you probably wouldn’t use the present continuous as you said. That might have been a bad translation on my part, but we don’t differentiate the stative and continuous in Swedish anyway.