This document discusses six English verbs that are often confused or used incorrectly: lie/lay, sit/set, and rise/raise. It provides explanations and examples of the principal parts and proper uses of each verb pair. For lie/lay, it notes that lie means "to rest" while lay means "to put something in place." For sit/set, it indicates sit means "to rest in an upright position" while set means "to put something in a place." And for rise/raise, it explains rise means "to go upward" and raise means "to move something upward." It includes exercises for readers to practice using the correct forms.