Final answer:
The phrase 'Más vale que' is followed by verbs in the subjunctive mood, as it expresses wishes, suggestions, or requirements that are hypothetical or not certain to occur.
Step-by-step explanation:
When encountering the phrase 'Más vale que', it is typically followed by a verb in the subjunctive mood. The subjunctive mood is used to express wishes, suggestions, or requirements, or to suggest something hypothetical or unlikely. In contrast, the indicative mood states facts, opinions, or asks questions, while the imperative mood gives commands or instructions.
For example, the sentence 'Más vale que estudies para el examen' translates to 'It is better that you study for the exam', implying a suggestion or a hope that the action will be carried out, rather than stating it as a fact.