This PPT explains SER/ESTAR, AR/ER/IR verb conjugations and the verb GUSTAR. It has slides that come alive and slides that you can use with the students to practice before giving them a worksheet. It's divided into the main verbs. Ser, then Estar, the three verb endings, and Gustar et al type verbs. I used the DOCTOR/PLACE explanation for SER/ESTAR. It's easy on the eyes, and I have done test runs with my students, whom gave me the thumbs up!