This PowerPoint lesson (in English) discusses the use of "si clauses" in Spanish. It compares the uses of the indicative mood vs the subjunctive mood. It compares "Real & Possible" to "Hypothetical Now" and "Unreal Past" It illustrates how to set up the sentences and the differences between each mood. It includes real world examples, movie and TV examples, and historical "What if?" moments. It includes common mistakes made, a brief video clip, and practice sentences. There is also a free writ