Prepositions and phrasal verbs

Some verbs must occur with a preposition. Such verbs are called phrasal verbs. Examples of phrasal verbs are kijken naar (‘to look at’), houden van (‘to love’), denken aan (‘to think of’). The preposition of a phrasal verb introduces the object of a phrasal verb, which is known as a prepositional object. The prepositional object may be a pronominal adverb, which is an adverb with the function of a pronoun.