Concept
A dummy pronoun is a deictic pronoun that fulfills a syntactical requirement without providing a contextually explicit meaning of its referent. As such, it is an example of exophora. Dummy pronouns are used in many Germanic languages, including German and English. Pronoun-dropping languages such as Spanish, Portuguese, Chinese, and Turkish do not require dummy pronouns. A dummy pronoun is used when a particular verb argument (or preposition) is nonexistent (it could also be unknown, irrelevant, already understood, or otherwise "not to be spoken of directly") but when a reference to the argument (a pronoun) is nevertheless syntactically required. For example, in the phrase "It is obvious that the violence will continue", it is a dummy pronoun, not referring to any agent. Unlike a regular pronoun of English, it cannot be replaced by any noun phrase. The term dummy pronoun refers to the function of a word in a particular sentence, not a property of individual words. For example, it in the example from the previous paragraph is a dummy pronoun, but it in the sentence "I bought a sandwich and ate it" is a referential pronoun (referring to the sandwich). In the phrase "it is raining—", the verb to rain is usually considered semantically impersonal, even though it appears as syntactically intransitive; in this view, the required it is to be considered a dummy word. However, there have been a few objections to this interpretation. Noam Chomsky has argued that the it employed as the subject of English weather verbs can control the subject of an adjunct clause, just like a "normal" subject. For example, compare: She brushes her teeth before having a bath. → She brushes her teeth before she has a bath. It sometimes rains after snowing. → It sometimes rains after it snows. If this analysis is accepted, then the "weather it" is to be considered a "quasi-(verb) argument" and not a dummy word. Some linguists such as D. L. Bolinger go even further, claiming that the "weather it" simply refers to a general state of affairs in the context of the utterance.