The document discusses the past simple tense of the verbs "to be" and regular verbs in English. It provides examples of their affirmative, negative, and interrogative forms in the 1st, 2nd and 3rd person singular and plural. For regular verbs, it notes that the past tense ending is -ed or -d, depending on if the verb ends in e. It also provides examples of how question forms are responded to with yes or no.