This document is an English grammar exercise that focuses on the present continuous tense. It contains:
1. A list of verbs in their "-ing" form that students must write in the correct columns of regular or irregular verbs.
2. An explanation of how to form negative sentences in the present continuous tense using "not" after the auxiliary verb.
3. Several examples for students to write the same sentences in the negative form.
4. Pictures with sentences in the affirmative present continuous for students to write the corresponding negative sentences. The pictures depict various actions for students to practice this grammar point.