This is grammar practice for Chapter 4.2, in En Espanol 1 book. the first third is correcting sentences that are wrong to ensure they can work the grammar rules backwards as well as forwards. The middle section is to conjugate stem changing verbs e-i and e-ie. The final part is to write sentences using + and - words like Ningun, alguien, etc.
Great partner activity to do and then share out with the class, individually and then compare with a partner, or as partners and then designate a person to write the correct answer to a specific question on the board