The document discusses the imperfect tense in Latin. The imperfect tense describes past actions that were continuous, repeated, or incomplete. It is formed by adding "BA" to the verb stem and using personal endings. Some examples of translated imperfect tense verbs are "I was calling," "you were owing," and "they were demanding." The imperfect of the verb "to be" is also given as "eram," "eras," etc. The imperfect tense is easy to recognize due to the consistent "BA" prefix added to the verb stem.