Teach, revise, and test: SER y ESTAR! Worksheets with explanations, examples and 180+ practice sentences. Mini quizzes to test the learnt knowledge. To keep it simple, all examples and sentences are in the present tense. Included are examples and practice sentences for: SER used with 1. time, day, and date 2. place of origin 3. nationality 4. possession 5. occupation 6. the material something is made of 7. where an event is taking place 8. relationship between people 9. religious or political