''Clean up your room this minute!'' is an example of which mood?

The phrase "Clean up your room this minute!" is an example of the imperative mood because it issues a command or instruction to someone. In the imperative mood, the subject is often implied rather than explicitly stated; in this case, it is understood to be "you." This mood is used to direct someone to perform an action, making it distinct from other moods that convey statements, wishes, or conditions.

In contrast, the indicative mood expresses statements of fact, the subjunctive mood conveys wishes, hypothetical situations, or necessities, and the conditional mood indicates actions that depend on certain conditions being met. Thus, this phrase clearly exemplifies the directive nature of the imperative mood.