 According to the model above

[ Clause [ Adjunct ] [ Core [Nucleus] ] Adjunct

[ [ yesterday] [the men][ they=caught] the tuna] at sea 

Syntax

Wuvulu language just like its 30 linguistics sisters which they are SVO language.However, it has a tendency for VOS syntax because Wuvulu is very similar to proto-Oceanic language, which the verbal agreement marking and its propensity for the subject constituent are at the ending of sentence.Verbless Clauses 
Example