This document discusses different sentence structures in English including SVOC, SVO, and SVOO. SVOC structures contain a subject, verb, object, and complement, such as "I imagined her beautiful." SVOO structures contain two objects and can be transformed into SVOA structures by placing the indirect object at the end of the sentence and adding a preposition before it, like changing "She sent John a card" to "She sent a card to John." Prepositions like "with", "of", and "at" can be used before the indirect object depending on the verb.