The document discusses five ways to use the verb "do" in English:
1) As a main verb by itself, as in "I do the dishes"
2) To form questions, as in "Do you like coffee?"
3) To form negatives, as in "I don't like coffee"
4) For emphasis, as in "I do clean my room!"
5) As an infinitive with other verbs like "like", "want", etc, as in "I want to do the laundry"