Tense Correlations with the subjunctive

If the main clause is present, future, imperative

The subordinate clause is

congiuntivo presente (if concurrent)

congiuntivo passato (if before the main clause)

If the main clause is

passato prossimo

imperfetto

trapassato

condizionale presente and passato

The subordinate clause is

congiuntivo imperfetto (if concurrent)

congiuntivo trapassato (if before the main clause)

If the "if-clause" is se + presente, congiuntivo imperfetto, congiuntivo trapassato

The independent clause will be

Present - present, future, imperative

Imperfect/trapassato - conditional present or past

To describe real or likely situations, use

indicative clause (if-clause)

future or imperative (subordinate)

To describe hypothetical situations, use

congiuntivo imperfetto (if-clause)

conditional or past conditional (subordinate)

To describe impossible situations, use

congiuntivo trapassato (if-clause)

conditional or past conditional (subordinate)