The document discusses three main patterns of intonation in English: falling intonation, rising intonation, and fall-rise intonation. Falling intonation occurs when the voice falls on the final stressed syllable and is used for statements and definite answers. Rising intonation has the voice rising at the end and is used for yes-no questions. Fall-rise intonation has the voice fall and then rise at the end, and is used to show uncertainty or politeness in statements and questions.