Infinitive of purpose

CONDICIONALES: Tipo 1 PRESENTE-PRESENTE:son verdades universales o cosas que siempre son verdad Ejemplo: si calientas mantequilla se derrite (if you boil butter it melts) PRESENTE IMPERATIVO: si tienes calor abre la ventana (if you are hot open the door) PRESENTE-FUTURO: si estudias aprobaras (if you study you will pass) TIPO 2 PASADO SIMPLE-CONDICIONAL SIMPLE: si estudiaras  tu aprobarias ( if you studied you would pass) si fuera rico compraria un castillo (if  i were rich i would buy a castle) si los elefantes tuvieran alas podrian volar (if elephantas had wings they would be able to fly)