The document discusses question formation in English. It explains that in yes/no questions, the auxiliary verb (is, are, have, etc.) comes before the subject. It also notes that wh- questions follow the pattern of wh- word + auxiliary verb + subject. The document provides examples of questions using do/does/did and common verbs like work, live, go. It cautions that the subject always comes after the first verb in a question. Finally, it covers question formation with why and a negative verb phrase.