A neutral introduction with a negative alternative
The supplied introductory pair is ང་སློབ་ཕྲུག་ཡིན། and ང་སློབ་ཕྲུག་མིན།. In the stated ordinary self-introduction model, the first says that the speaker is a student and the second denies that identity. A learner notices the same subject and noun in both and translates both affirmatively. Another correctly preserves the difference but then announces an exceptionless law assigning every Tibetan copula solely by grammatical person. The exercise asks for a faithful bounded account. No recording is supplied, and the task does not assess dialect-specific pronunciation. A qualified teacher can extend the model to knowledge, stance, respectful usage and other actual contexts without pretending that this small contrast exhausts the copular system.
1. What is the essential difference?
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The affirmative identifies the speaker as a student, while the negative denies it. The change from ཡིན to མིན must be preserved.
2. What generalization is too strong?
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The pair does not establish an exceptionless person-only rule for all Tibetan copulas. Broader use involves context, stance and knowledge as well as the introductory model.