The document contains exercises from a Portuguese language test correction from August 28th, 2007. Exercise 1 lists 12 verbs and asks to identify which ones are correct or incorrect in given sentences. Exercise 2 lists 12 sentences with verbs and asks to identify the tense or form of each verb. Exercise 3 contains 9 pairs of negative and positive sentences using didn't and did. Exercise 4 asks about a sentence with didn't and what was studied for the test, and lists examples of regular and irregular verb forms.