Final answer:
The phrase 'Es probable que...' introduces the subjunctive mood in Spanish. It is used to express probability or likelihood.
Step-by-step explanation:
Es probable que... is an example of a phrase that introduces subjunctive mood in Spanish. The subjunctive mood is used to express wishes, suggestions, requirements, or hypothetical situations. In this case, the phrase conveys a sense of probability or likelihood. When using the subjunctive mood, the verb form following es probable que is conjugated in the present subjunctive. For example, Es probable que lleguen tarde (It is probable that they will arrive late).