Phrasal verbs represent a practically limitless group of verbs that can be combined with short adverbs or prepositions to produce new meanings. Here are some examples: Phrasal verbs are ubiquitous in ...
In these examples, down and back are not prepositions but function as adverbs to extend or change the meaning of the verb. This combination of verb and adverb is always known as a phrasal verb.
We often think of these words as prepositions, but here they behave like adverbs. The adverb s... Features of informal English common words and phrasal verbs Don't worry, I'll back you up.