A preposition together with its complement is called a prepositional phrase. This can be placed before a verb, preposition or adverb to negate it. A noun following a preposition takes the genitive case. The object of a compound preposition is in the genitive. Yet others are created with an original verb preceding a preposition. Note that the phrase does not contain a preposition "of". The prefixes that this preposition takes are outlined here. Compare the concept of inflected preposition. Zero preposition refers to the nonstandard omission of a preposition. The wh-word is the object of a preposition. The similar-sounding English preposition "by" has come to encompass these meanings. The same preposition also marks indirect objects. Standard German provides composite words for the particle and the bound preposition. In contrast, the object of a preposition can never precede the preposition. The issue is understood in terms of preposition stranding.