Teaching guidelines +/- 15 minutes

Learn to express agreement and disagreement in Spanish using key phrases like "creo que" (I believe that) with the indicative for certainty, and "no creo que" (I don't believe that) with the subjunctive to show doubt. This lesson highlights the difference between these moods through phrases such as "Está claro que" (It's clear that) and "No está claro que" (It's not clear that).
  1. Creo que + indicative to show agreement or certainty.
  2. No creo que + subjunctive** to show disagreement or doubt.
  3. Positive opinion = indicative; Negative opinion = subjunctive
Expresión (Expression)Uso (Usage)Ejemplo (Example)
Creo que + indicativo (I believe that + indicative)Certeza  (Certainty)Creo que es urgente.
No creo que + subjuntivo (I don't believe that + subjunctive)Duda o negación (Doubt or denial)No creo que sea urgente.
Está claro que + indicativo (It is clear that + indicative)Hecho evidente  (Evident fact)Está claro que tenemos tiempo.
No está claro que + subjuntivo (It is not clear that + subjunctive)Falta de claridad  (Lack of clarity)No está claro que tengamos tiempo.
Es verdad que + indicativo (It is true that + indicative)Afirmación verdadera  (True statement)Es verdad que organizan bien.
No es verdad que + subjuntivo (It is not true that + subjunctive)Negación de verdad  (Denial of truth)No es verdad que organicen bien.
Estoy seguro de que + indicativo (I am sure that + indicative)Seguridad (Certainty)Estoy seguro de que completas la tarea.
No estoy seguro de que + subjuntivo (I'm not sure that + subjunctive)Inseguridad  (Insecurity)No estoy seguro de que completes la tarea.

Exercise 1: Expresar acuerdo y desacuerdo

Instruction: Fill in the correct word.

Show translation Show answers

No estoy seguro de que, Estoy seguro de que, Es verdad que, No es verdad que, Está claro que, No creo que, No está claro que

1. Seguridad:
... completas el formulario sin problemas.
(I am sure that you complete the form without any problems.)
2. Afirmación verdadera:
... ellos trabajan en equipo.
(It is true that they work as a team.)
3. Inseguridad / Subjuntivo:
... cambies de opinión fácilmente.
(I am not sure that you will change your mind easily.)
4. Duda / Subjuntivo:
... la responsabilidad sea suya.
(I don't think the responsibility is yours.)
5. Duda / Subjuntivo:
... él organice bien el proyecto.
(I don’t think he organises the project well.)
6. Hecho evidente:
... la tarea es urgente.
(It is clear that the task is urgent.)
7. Falta de claridad:
... completemos todas las tareas hoy.
(It is not clear that we will complete all the tasks today.)
8. Negación de verdad:
... cambien de líder cada semana.
(It is not true that they change leader every week.)

Exercise 2: Multiple Choice

Instruction: Choose the correct sentence for each situation, paying attention to the use of the indicative and subjunctive with expressions of agreement and disagreement, and to the vocabulary of organization and delegation.

1.
Incorrect to use subjunctive after 'I think'; the indicative must be used.
After 'I don't think', the subjunctive is used, not the indicative.
2.
Error: with 'I think' the indicative is used, not the subjunctive.
Error: after 'I don't think' the subjunctive ('is') must be used, not the indicative ('is').
3.
Error: after 'It is not true that' the subjunctive ('is') is used, not the indicative.
Incorrect combination if the task is actually pending, as it contradicts the negation.
4.
After 'I am not sure that', the subjunctive ('delegate') corresponds, not the indicative.
Error: after 'I am sure that' the indicative is used, not the subjunctive.

Expressing Agreement and Disagreement in Spanish

This lesson is designed for A2-level learners to master how to express agreement and disagreement using common Spanish expressions combined with verb moods. You will learn to distinguish between statements of certainty and doubt, using indicative and subjunctive forms correctly.

Key Expressions and Usage

  • Creo que + indicative: Used to express certainty or agreement. Example: Creo que es urgente.
  • No creo que + subjunctive: Shows doubt or disagreement. Example: No creo que sea urgente.
  • Está claro que + indicative: Indicates an obvious fact. Example: Está claro que tenemos tiempo.
  • No está claro que + subjunctive: Denotes lack of clarity or uncertainty. Example: No está claro que tengamos tiempo.
  • Es verdad que + indicative: Affirms truthfulness. Example: Es verdad que organizan bien.
  • No es verdad que + subjunctive: Negates a statement’s truth. Example: No es verdad que organicen bien.
  • Estoy seguro de que + indicative: Expresses confidence. Example: Estoy seguro de que completas la tarea.
  • No estoy seguro de que + subjunctive: Conveys uncertainty. Example: No estoy seguro de que completes la tarea.

Indicative vs. Subjunctive

The indicative mood is used after expressions that convey certainty and positive opinion, while the subjunctive follows expressions of doubt, denial, or negative opinion. For instance:

  • Positive opinion: Creo que es importante. (indicative)
  • Negative opinion or doubt: No creo que sea importante. (subjunctive)

Comparison with English

Unlike English, Spanish distinguishes opinions more clearly by changing verb moods. English speakers often use modal verbs or adverbs (e.g., "I think" vs. "I don't think"). In Spanish, the mood—indicative or subjunctive—changes depending on the speaker’s certainty or doubt. Recognizing this difference will help in both comprehension and expression.

Useful phrases include:

  • Creo que = "I believe/I think" (with certainty)
  • No creo que = "I don’t think" (expressing doubt)
  • Está claro que = "It’s clear that"
  • Es verdad que = "It’s true that"
  • Estoy seguro de que = "I’m sure that"
  • No estoy seguro de que = "I’m not sure that"

Understanding these constructions and their moods will greatly improve your ability to articulate agreement and disagreement naturally in Spanish.

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