It's because the meanings in the adverbs as well as the prepositions generally remain exactly the same in these phrasal verbs. For instance, the meaning of “up” in Just about all phrasal verbs is connected with finishing or finishing anything. Create your own outrageous story with this fill-in-the-blank Tale! https://tysonjbngu.blogerus.com/54813361/the-basic-principles-of-englishvocabulary