The document discusses different types of questions in English including:
1. General questions that use auxiliary verbs like do/does, is/am/are, have/has.
2. Special questions that use question words like where, why, what, which, when, how.
3. Alternative questions that provide options joined by "or".
4. Tag questions that add a short question-tag to statements.
5. Subject questions that ask about the subject of the sentence using question words.
Examples are provided for each type of question using different tenses like present simple, past simple, future simple, present continuous, present perfect, past perfect, and present perfect continuous.