C1 Spanish grammar
Assertive Verbs and Mood in Spanish
Assertive verbs such as afirmar, sostener, declarar, creer, and considerar normally present a proposition as part of the conversational record. Spanish mood changes when the speaker attributes that assertion, explicitly withholds it, or marks the information as not established.
Assertive Verbs and Mood in Spanish decision map
1. Present established information with the indicative → 2. Use the subjunctive when the frame withholds assertion → 3. Separate attributed claims from unconfirmed information
Work through these meaning and discourse decisions in order before choosing the final structure.
Assertive Verbs and Mood in Spanish: choices and models
| Decision | Guidance | Model |
|---|---|---|
| Present established information with the indicative | Use the indicative after a positive assertive frame when the complement is presented as information the source stands behind, whether or not the current speaker personally guarantees it. | La autora sostiene que los datos demuestran una tendencia clara. |
| Use the subjunctive when the frame withholds assertion | Negating or rejecting an assertive act can remove the proposition from the speaker's commitments. Frames such as no sostengo que, niego que, and no está demostrado que therefore favor the subjunctive. | No sostengo que la solución sea perfecta; digo que es viable. |
| Separate attributed claims from unconfirmed information | An attributed assertion can remain indicative because a named source commits to it. An impersonal expression such as no consta que or no hay pruebas de que instead marks the proposition as unconfirmed and selects the subjunctive. | El testigo asegura que lo vio, pero no consta que estuviera allí. |
The model illustrates the decision; preserve its meaning and discourse effect when adapting it.
Spanish assertive verbs and mood: Present established information with the indicative
Use the indicative after a positive assertive frame when the complement is presented as information the source stands behind, whether or not the current speaker personally guarantees it.
La autora sostiene que los datos demuestran una tendencia clara.Quick check
Complete the attributed assertion: El portavoz declaró que la medida ___.
Use the subjunctive when the frame withholds assertion
Negating or rejecting an assertive act can remove the proposition from the speaker's commitments. Frames such as no sostengo que, niego que, and no está demostrado que therefore favor the subjunctive.
No sostengo que la solución sea perfecta; digo que es viable.Separate attributed claims from unconfirmed information
An attributed assertion can remain indicative because a named source commits to it. An impersonal expression such as no consta que or no hay pruebas de que instead marks the proposition as unconfirmed and selects the subjunctive.
El testigo asegura que lo vio, pero no consta que estuviera allí.Common mistakes
El informe afirma que los costes hayan bajado.
El informe afirma que los costes han bajado.
A straightforward attributed assertion normally keeps the complement in the indicative.
No está demostrado que el tratamiento funciona.
No está demostrado que el tratamiento funcione.
The impersonal frame explicitly marks the effectiveness as unestablished.
A source said it, so the speaker must agree with it.
Indicative can attribute another person's assertion without endorsing it.
Mood tracks how the proposition is presented, not a simple true-or-false judgment by the current speaker.
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Assertive verbs and mood FAQ
What does assertive verbs and mood cover?
Assertive verbs such as afirmar, sostener, declarar, creer, and considerar normally present a proposition as part of the conversational record. Spanish mood changes when the speaker attributes that assertion, explicitly withholds it, or marks the information as not established.
What is the first rule to remember?
Use the indicative after a positive assertive frame when the complement is presented as information the source stands behind, whether or not the current speaker personally guarantees it.
What is another important C1 pattern?
Negating or rejecting an assertive act can remove the proposition from the speaker's commitments. Frames such as no sostengo que, niego que, and no está demostrado que therefore favor the subjunctive.
How can I practise Spanish assertive verbs and mood?
Complete the focused round, review each correction, and repeat the lesson when its skills become due again.