This video is a lesson on using verbs in the subjunctive mood. The teacher explains how the subjunctive mood is used to express imaginary or hoped for conditions, and provides examples and practice exercises. The video also covers common markers for the subjunctive mood and explains how to form verbs in the subjunctive. Students are encouraged to revise sentences and paragraphs using the subjunctive mood to enhance their writing. By the end of the video, students will have a better understanding of when and how to use verbs in the subjunctive mood.