The document discusses the four types of sentences - simple, compound, complex, and compound-complex - and provides examples. It also discusses the key elements of a coherent paragraph, including a topic sentence, support sentences, and transitions to connect ideas and alert the reader to shifts. Transitions can include connecting words, pronouns, paired words, and words that indicate additional detail, comparison, cause-and-effect, contrast, condition, illustration, time sequence, intensification, summary, and repetition.