Final answer:
The word "quizá" indicates the subjunctive mood, used for expressing uncertainty, in contrast to the indicative mood, which states facts or certainties. Verb moods in Spanish include indicative, imperative, and subjunctive, each with distinct communicative functions.
Step-by-step explanation:
The word "quizá" often signals the use of the subjunctive mood in Spanish, which is used to express doubts, wishes, possibilities, or hypothetical scenarios. Unlike the subjunctive, the indicative mood is used to express facts, reality, or certainty. The presence of "quizá" suggests that the speaker is not certain about the outcome. For example, "Quizá llueva mañana" (Maybe it will rain tomorrow) uses the subjunctive mood to express the uncertainty of whether it will rain. Contrast this with the indicative mood, which would state a fact or belief without uncertainty, such as "Llueve ahora" (It's raining now).
Regarding verb moods, verbs have three moods: indicative, imperative, and subjunctive. Each mood serves a different purpose in communication. Imperative mood is used for commands or requests. For instance, "Use the online form to request time off" employs the imperative mood to issue a command.