Complement Clauses

A complement clause fills a role selected by another word: what someone says, knows, wants, regrets, promises, or considers possible. Catalan chiefly contrasts a finite clause introduced by que with an infinitival clause whose subject is normally understood from the main clause.

English can omit “that” and freely uses patterns such as “I want him to come.” Catalan neither drops finite que nor copies that object-plus-infinitive structure. The choice between que vingui and venir depends on subject reference, modality, and the selecting predicate.

Finite declarative complements require que

After verbs of assertion, perception, thought, and communication, que introduces a complete proposition with its own finite verb.

The complementizer is obligatory even when English omits “that”: Crec que tens raó, never Crec tens raó. It does not carry an accent. Accented què is an interrogative or a prepositional relative, not the neutral declarative linker.

Bracketed, [Main clause la directora ha anunciat] [Complement que demà publicaran els resultats]. The time adverb belongs inside the complement; moving it to the far left—Demà, la directora ha anunciat que publicaran els resultats—can instead make it modify the announcing. Order distinguishes attachment and scope.

Indicative or subjunctive inside the complement

The main predicate frames the embedded proposition. Assertion and knowledge normally present it as part of the speaker's information and select the indicative. Volition, influence, evaluation, doubt, and rejection place it under a non-assertive attitude and commonly select the subjunctive.

The subjunctive does not mean that an event is unreal. In the last example, the failure to detect the error is treated as given; the main clause evaluates it. Conversely, an indicative future can describe uncertainty when the main predicate reports a question or conjecture. Mood follows how the proposition is packaged, not a simple true/false test; the introduction to the present subjunctive develops this logic beyond complement clauses.

Negated belief illustrates perspective. No crec que arribin a temps with the subjunctive is the ordinary rejection of the embedded likelihood. An indicative can be chosen in marked contexts to echo or defend the proposition, but learners should master the subjunctive default before interpreting those discourse effects.

Infinitival complements and understood subjects

When the subject of the embedded action is the same as the subject of the main verb, an infinitive is often the compact choice.

With esperar, the understood subject of acabar is Berta; with decidir, the understood subject of ajornar is nosaltres. This relation is called subject control: the silent subject of the infinitive is interpreted through an argument of the higher verb.

If the intended subjects differ, use a finite que clause:

Catalan has no productive personal infinitive corresponding to English “for him to finish,” and Vull l'Arnau venir is not the Catalan version of “I want Arnau to come.” Use Vull que l'Arnau vingui.

Some predicates introduce an object that controls an infinitive, usually with a preposition: Han obligat l'empresa a repetir la prova. Here l'empresa is the direct object of han obligat and the understood subject of repetir. This construction is licensed by obligar; it is not a general permission to place a noun before any infinitive.

Here ens is the object of ha animat and the understood subject of presentar. Learn such frames with the verb rather than deriving them from English order.

Prepositions before infinitives and before finite que

Catalan exposes a sharp difference between infinitival and finite complements. A selected preposition can appear before an infinitive: confiar a resoldre-ho is not the normal frame, but insistir a parlar-ne and estar convençut d'haver-ho fet bé illustrate prepositional infinitives. Before a finite declarative que clause, standard Catalan generally drops the selected unstressed preposition a, de, en, or amb or recasts the sentence.

Thus Spanish-influenced estic convençuda de que is not the careful standard model. If omitting the preposition feels awkward in a dense (formal) sentence, insert a noun: Estic convençuda del fet que trobarem una sortida. The noun fet carries de, and the following que complements the noun.

This rule does not erase prepositions inside established adverbial conjunctions such as abans que or des que. Those introduce adverbial clauses, not the selected complements described here.

Clausal subjects and extraposition-like order

A complement clause can function as the logical subject of an evaluative or impersonal predicate. Catalan strongly favors placing a heavy clause after that predicate.

English uses dummy “it” in “it is clear.” Catalan simply uses third-person singular és and places the clausal subject afterward. There is no referential això corresponding to dummy “it.” Calling evident the subject or inventing això és evident que... misanalyses the clause.

Fronting the clause is possible when it is already the topic or receives contrastive emphasis:

The reordered version is heavier and more typical of deliberate (formal) argumentation. It is not interchangeable in information structure with the neutral postposed version. In both, the finite verb remains singular because a clause counts as one syntactic unit.

Dislocation and pronominal resumption

A proposition already active in conversation can be detached and resumed by neutral clitic ho. Left dislocation places it first; right dislocation appends it as a clarification.

The second pattern is especially natural (informal). The commas and ho show that the que clause is dislocated, not sitting in the neutral object position. Neutral Ja sabia que acceptaries l'oferta has no resumptive ho and no comma.

A natural dialogue

The dialogue contrasts indicative acceptarà under a genuine request for an opinion, subjunctive signi under doubt, controlled infinitive respondre with Marta understood as its subject, and subjunctive digui under hope.

Referential ambiguity inside a finite complement

Because Catalan normally omits subject pronouns, arribaria may refer to Clara or Júlia. The indirect object a la Júlia does not automatically control the embedded subject. If the distinction matters, use contrastive pronouns or names: La Clara va dir que ella arribaria tard can still require contextual stress, so La Clara va dir a la Júlia: «Arribaré tard» or ...que la Júlia arribaria tard is clearer.

Short correction task

Correct the missing linker in Crec arribarà aviat and the subject mismatch in Vull tu venir demà.

Common Mistakes

Key Takeaways

• Finite declarative complements require unaccented que; unlike English “that,” it is not omitted.
• Assertions generally select the indicative; wishes, influence, evaluation, and doubt commonly select the subjunctive.
• An infinitive normally shares a controller with the main clause; a different subject usually requires que plus a finite verb.
• Standard Catalan generally avoids selected a, de, en, or amb directly before finite complementizer que.
• Postposed clausal subjects are neutral; fronting and dislocation change topic–focus structure and may require resumptive ho.