I've just realised that I left out the most important part of this: noun cases! If the language has noun cases, then they will tell you whether it's nom-acc or erg-abs. On the other hand, if there are no cases, then the question doesn't even make sense, since (as far as I know) you can't have morphosyntactic alignment without noun cases. Feel free to disregard the above alignment question.bradrn wrote: ↑Wed Feb 20, 2019 3:39 am [...] the issue now is if you have an intransitive verb:
- yes-xe
- We exist
Is this language nom-acc, since this is the experiencer having the same affix as the agent? Or is it erg-acc, since the experiencer is the same as the patient? What if the rest of the syntax doesn't help e.g. if it's SOV?
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EDIT: The above reasoning is WRONG. I've just realised you can definitely have alignment without noun cases - it's possible to just do it through syntax. I suppose that it's always possible to figure out some sort of alignment through the sorts of morphological/syntactic features a language has, whether it's noun cases, syntax, presence of passive/antipassive etc. Still, feel free to disregard the above question - I feel that I've answered it well enough in this paragraph.
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Further hypothetical question: Let's arbitrarily say that our language is nom-acc with noun cases, and the system above is used for agreement. Then let's say we have some sound change which applies to the end of words. Now our agent and patient forms are no longer identical: the sound changes applied to the patient but not the agent, because the former was at the end of the word but the latter wasn't. But the sound changes also applied to the experiencer as well (it's also at the end of the word), making it identical to the patient! So now we have the patient/experiencer forms the same, while simultaneously being different to the agent form - in other words, erg-abs alignment in the polypersonal agreement. But we still have nom-acc on the nouns! Now luckily I avoided this situation by having no noun cases, but how could this horrible situation be resolved?