EL-Armor De Mariachi

Type 1 ( future tense )
Use     :  Talk about a present or future protable case
Tense  :  If - clause ~ present tense
             Main clause ~ future tense

Type 2 ( Present unreal / present subjective )
Use    :  Talk about a present or future improbable case
Tense :  If clause ~ past tense
            Main clause ~ future tense

Type 3 ( Past unreal )
Use    :  Talk about a past or present improbable case
             ( A care that is likely to happen )
Tense : If clause ~ past present tense
            Main clause ~ would + have + ver III