In Spanish, negative commands for tú and vosotros/-as, take the same form as their conjugation in El Presente de Subjuntivo.
Look and listen to these examples for Tú (negative commands):
See some examples for Vosotros/-as (negative commands)
Bear in mind that this rule does not apply to affirmative commands for tú and vosotros/-as. For affirmative commands, see: