write a sentence using a verb in the subjunctive mood and then explain how you recognize the use of the subjunctive mood

It is essential that she study for the exam tomorrow.

In this sentence, the use of the subjunctive mood is recognized by the word "is essential" followed by the verb "study." The subjunctive mood is used to express necessity, desire, recommendation, or hypothetical situations. In this case, the sentence expresses the necessity for her to study for the exam.