1. The document discusses the simple present tense in English, including its formation with the verbs "to be" and auxiliary verbs.
2. It provides examples of affirmative, negative, and interrogative sentences using the simple present tense. Contractions are also covered.
3. Exercises are included to practice transforming sentences from affirmative to negative and interrogative using contractions. The rules for adding "s" in the third person singular are explained.