The Imperative Mood in Spanish is used to give commands, requests, or instructions directly to someone. It’s a vital part of everyday communication, ensuring you can tell people what to do (or not to do!) clearly and efficiently.
Imperative forms are for tú, usted, vosotros, and ustedes. There is no 'yo' form.

Affirmative Commands

The affirmative imperative commands are used to tell someone to do something. They change according to the subject (tú, usted, vosotros, ustedes) and have specific conjugation rules for regular and irregular verbs.
habla (tú), hable (usted), hablad (vosotros), hablen (ustedes) are correct.
Sal, Ven, Di, Haz are irregular 'tú' commands for salir, venir, decir, hacer.

Negative Commands

Negative commands tell someone not to do something and are formed using the subjunctive mood for all subjects (including tú and vosotros).
Negative commands use subjunctive: no hables, no hable, no habléis, no hablen.
No comas, no coma, no comáis, no coman are correct negative commands.

Conclusion

The Spanish imperative mood is essential for telling people what to do (or not to do), with distinct forms for affirmative and negative commands across different subject pronouns.