Explanation:

It is the “2nd type of ‘if’ clause” in which you use the subjunctive in the clause following “if” and the present conditional in the main clause. The subjunctive in English, in “if” clauses, is almost the same as the past tense simple, with the only difference that, for the verb “to be” takes “were” for all the persons, including the singular (I, he, she, it).