When we learn and practice the notion of degrees of security and the contrast in use between the indicative and the subjunctive, we do so under the lens of a truly subjective measure. The truth is that some factors help to recognize grades of probabilities, and then among those grades, we add security if we use the indicative and subtract if we use the subjunctive. Remember, also some of those factors, specific expressions, always use one or the other, and so it’s worth going back to memory.
Think about which of these hypotheses are more certain and which are less certain. Order them from most secure to least.
Piensa en cuáles de estas hipótesis presentan mayor grado de seguridad y cuáles menor. Ordénalas de mayor seguridad a menor.
A lo mejor Marta viene a la fiesta.
Es probable que Marta venga a la fiesta.
Yo diría que Marta vendrá a la fiesta.
Creo que Marta vendrá a la fiesta.
Quizás Marta venga a la fiesta.
