The subjunctive is used in sentences with a main clause containing a verb of emotion like hope, joy, surprise, fear or pity followed by a subordinate clause. When there is no change in subject between clauses, an infinitive is used in the subordinate clause, but when the subject changes, the subjunctive form of the verb is used instead.

1. Subjunctive With Verbs of Emotion The subjunctive is made of a main clause and a subordinate clause. The main clause may contain a verb of emotion such as hope, joy, surprise, fear,and pity. The subordinate clause contains the subjunctive. When there is no change in the subject, use an infinitive. When there is a change in the subject, use the subjunctive.