The document discusses phrasal verbs in English. It defines phrasal verbs as verb phrases consisting of a main verb and a particle, such as a preposition or adverb. It provides examples of common phrasal verb structures and examples, including verb + preposition, verb + adverb, and verb + adverb + preposition combinations. It also notes that phrasal verbs can be conjugated and gives rules for splitting phrasal verbs with nouns or pronouns.