CONDITIONAL

First Conditional

IF + PRESENT SIMPLE, WILL + BASE FORM

ES. If i pass this exam, i will celebrate

Second Conditional

IF + PAST SIMPLE, PRESENT CONDITIONAL (would, could, might, should) + BASE FORM

ES. If she fell, she would hurt herself

Third Conditional

IF + PAST PERFECT, PAST CONDITIONAL (would, could, might, should) + HAVE + PAST PARTICIPLE

ES. If you had gone to the concert, i would have gone too