Phrasal verbs are combinations of verbs and particles that are commonly used in informal English and conversation. A phrasal verb consists of a verb plus a preposition or adverb, with the particle changing the meaning of the verb. Examples are "look up" which means consult a reference, "look for" which means seek, and "look forward" which means anticipate with pleasure. Many common phrasal verbs are formed from verbs like break, bring, call, carry, come, do, fall, get, go, keep, look, make, put, run, set, take, and turn.