this is an “irrealis mood”, there are quite a few of them with different functions, see: https://en.wikipedia.org/wiki/Irrealis_mood https://en.wikipedia.org/wi

this is an “irrealis mood”, there are quite a few of them with different functions, see: https://en.wikipedia.org/wiki/Irrealis_mood https://en.wikipedia.org/wiki/Irrealis_mood language is fascinating.