Final answer:
The phrase 'Es posible que' calls for the subjunctive mood in Spanish, which is used to express possibilities, wishes, or hypothetical situations. In contrast, the indicative mood states facts or opinions, and the imperative mood gives instructions or commands.
Step-by-step explanation:
When you come across the phrase 'Es posible que...' in Spanish, you are dealing with a situation that calls for the subjunctive mood. This mood is used to express uncertainty, doubt, wishes, or hypothetical situations, aligning with the notion that something is possible but not certain. In the case of 'Es posible que,' what follows is likely to be a verbal expression in the subjunctive.
For example, 'Es posible que llueva mañana,' translates to 'It may rain tomorrow,' demonstrating the use of the subjunctive mood to express a situation that is not guaranteed, but possible.
The verb mood is an important aspect of conveying a speaker's attitude or intention in language. While the subjunctive conveys possibilities or wishes, the indicative mood is used for stating facts or opinions, and the imperative mood is used for commands or instructions. Recognizing the difference between these moods is key to understanding and speaking Spanish effectively.