> When talking about someone or something external to you, Tibetan grammar forces you to express whether what you’re talking about is something you’ve experienced or seen with your own eyes, whether it’s an assumption you’re making, or if it’s something that is generally true to everyone else. The grammatical category the author describes here is called Evidentiality[1], and it's surprisingly rather common[2], but mo…
Many modern European languages have been simplified from this point of view, but some still have remnants of the older uses of the verbal moods, like the use of some kind of subjunctive for anything that is not known with certainty, e.g. from direct experience.