objektilauseis

Objektilauseis is a term used in Estonian linguistics to describe the use of clauses that function as the object of a main verb, noun, or adjective. Such a clause supplies the content of what is believed, perceived, stated, or commanded, rather than an noun phrase object. In Estonian grammar, clausal objects are typically subordinate clauses and may be finite or non-finite in form. Finite clausal objects are usually introduced by conjunctions such as et (that): Ma arvan, et ta tuleb. Non-finite clausal objects occur when the embedded content is expressed without a full finite verb, for example with participles or infinitives: Ma nägin teda helistamas.

The choice between finite and non-finite object clauses depends on the main verb and discourse context. Typologically, objektilauseis parallels the concept of clausal objects or complement clauses in many languages, such as English that-clause: I know that he is coming, or German dass-Satz. In Estonian, however, the inflectional system and conjunction use shape the exact syntax and word order of the object clause.

In linguistic studies, objektilauseis is discussed in relation to clause embedding, reporting of speech or thought, and the interaction between verb valency and clause content. It is also contrasted with noun phrase objects, which do not carry propositional content. See also: complement clause, clausal object.