Use commands (imperative) to give direct orders, instructions, or requests. Forms vary based on formality and whether they are affirmative or negative.
Important Rules
•Affirmative tú: Usually same as él/ella present indicative form
•Negative tú: Use present subjunctive (no + subjunctive)
•Nosotros (let's): Use present subjunctive
•Many common verbs have irregular affirmative tú forms