Basque to Tongan: preserve participant roles across two ergative systems
A shared case label does not mean a shared construction
Basque and Tongan both distinguish the actor of a transitive clause from the participant of a simple intransitive clause. That similarity helps explain roles, but it does not make their sentences interchangeable. In Laka’s Basque grammar, otsoa etorri da describes the wolf arriving. The wolf has no visible absolutive case suffix. In ehiztariak otsoa harrapatu du, the hunter catches the wolf: the hunter carries ergative marking, while the wolf remains absolutive.
Use these relationships to recover the event before building the Tongan sentence. An absolutive phrase is not automatically an object: it can identify the sole participant of an arrival. Likewise, the Basque suffix belongs to the whole noun phrase, even when its final word is not the noun. Moving only the noun or treating every unmarked phrase as a patient can change who performed the action. Shared terminology is useful only after the actual participants have been identified.
Tongan puts the grammatical signals in different places
Clemens and Tollan illustrate Tongan with Naʻe ʻalu ʻa Sione, Sione went, and Naʻe kai ʻe Sione ʻa e mango, Sione ate the mango. Here the relevant case markers precede the noun phrases: ʻe introduces the transitive subject and ʻa the absolutive phrase. The visible contrast therefore differs from a Basque phrase-final suffix versus an unmarked absolutive. The event also appears before these noun phrases in the examples.
The same study shows why a Basque description cannot simply keep its source clause shape. In the Tongan relative constructions examined, describing someone as the actor of a transitive event requires a resumptive pronoun, whereas the absolutive relative uses a gap. A description of the woman loving someone and one of the woman being loved need different structures. The pronoun required by the actor-relative construction does not introduce a second woman. It maintains the connection between the head noun and its role inside the description.
Resolve Basque ambiguity before making Tongan marking explicit
Research by Vela-Plo, Erdocia and Laka investigates how Basque readers interpret temporarily ambiguous participant phrases. Their experiments find a preference for an actor interpretation at the beginning of the sentence. This is a processing preference, not permission to declare that the first noun phrase must always be the actor. The authors explicitly examine both subject-before-object and object-before-subject arrangements.
For translation into Tongan, that distinction becomes consequential when a brief Basque message supplies two possible participants but little context. Establish which interpretation the complete verb form and surrounding discourse support before assigning the target roles. A fluent Tongan sentence can still be wrong if it confidently encodes the initial guess. Where the source really permits competing readings, preserve the intended event by obtaining context rather than imposing the preferred reading as a grammatical rule. The similarity between the languages’ case systems cannot resolve information that the Basque message itself leaves uncertain.
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