The verb-final structures cited by T & G are syntactically ambiguous because they can also be ordinary subordinate clauses.

Evidence (1)

Empirical and theoretical arguments against equating exclamatives and emotive assertions — Internal form: verb position, complementizer choice, and discourse particles

the syntactic structures in (13) are actually ambiguous

https://doi.org/10.1515/tl-2025-2001#unit-4-p2

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