What is the subjunctive used for?

The subjunctive mood is used to describe unreal or hypothetical situations and to express desires, wishes, suggestions, obligations, and requests or demands.

Some examples of sentences that use the subjunctive mood include:

“Khadija suggests that I donate money.” [request]

“It is crucial that he understand the consequences.” [obligation]

“We insist that there be enough food for everyone.” [demand]