Write a sentence using a verb in the subjunctive mood and

then explain how you recognize the use of the subjunctive mood.

It is crucial that she be on time for the meeting.

In this sentence, the verb "be" is in the subjunctive mood. The subjunctive mood is used to express desires, recommendations, demands, or hypothetical situations. In this case, the sentence is expressing the necessity or importance of her being on time for the meeting, making it a recommendation or demand. This is why the verb "be" is in the subjunctive mood.