ABSTRACT
Complement clauses are clauses which function as arguments of higher predicates. Within the broader domain of complex structures, they are distinct from clauses which function as adjuncts (adverbial clauses and relative clauses) or as conjuncts. They are also distinct from monoclausal structures with multiple predicates, as in serialization and secondary predication. None of these are discussed here. Higher predicates sometimes become grammaticized as auxiliary verbs and tam markers, but I assume that once they are grammaticized, we are no longer in the domain of complementation. 1
