How do you know if a sentence is subjunctive?

How do you know if a sentence is subjunctive? The subjunctive mood expresses wishes, suggestions, demands, or desires in a sentence with usually two clauses, with a verb such as wish (or suggest, demand, etc.) in one clause and a second verb in the subjunctive mood. In the sentence ‘I wish I were the president’ the verb ‘were’ is in the subjunctive mood.

The subjunctive mood expresses wishes, suggestions, demands, or desires in a sentence with usually two clauses, with a verb such as wish (or suggest, demand, etc.) in one clause and a second verb in the subjunctive mood. In the sentence ‘I wish I were the president’ the verb ‘were’ is in the subjunctive mood.