Yes. You have only two specific forms for the imperativ (with the verb ir, for example, ve tú/id vosotros). In other cases you have to use the subjuctive. -For nosotros: Hablemos! Vayamos al cine! (Let's go to the cinema) -In polite forms (usted, ustedes): Entren! (Come in) Estudie para el examen! (Study for the exam) - In negative forms: No vayas! (Don't go)

I really don't understand what do you mean with "negative imperative" because the verb is the same: positive or negative. The downside of learning Spansih is learning aaaaaall the verbs with different conjugations. Answer: Maybe in some verbs the impertive (tú/vosotros) is like the present of subjunctive but normally are differents. -Imperative: "Limpia/limpiad la mesa" -Present of subjunctive: "Cuando yo limpie la mesa..."