An existential clause is a clause that refers to the existence or presence of something, such as "There is a God" and "There are boys in the yard". The use of such clauses can be considered analogous to existential quantification in predicate logic, which is often expressed with the phrase "There exist(s)...". Different languages have different ways of forming and using existential clauses. For details on the English forms, see English grammar: There as pronoun. Formation Many languages form existential clauses without any particular marker by simply using forms of the normal copula verb (the equivalent of English be), the subject being the noun (phrase) referring to the thing whose existence is asserted. For example, the Finnish sentence , meaning "There are boys in the yard", is literally "On the yard is boys". Some languages have a different verb for that purpose: Swedish has , literally "It is found boys on the yard". On the other hand, some languages do not require a copula at all, and sentences analogous to "In the yard boys" are used. Some languages use the verb have; for example Serbo-Croatian is literally "In the yard has boys". Some languages form the negative of existential clauses irregularly; for example, in Russian, yest ("there is/are") is used in affirmative existential clauses (in the present tense), but the negative equivalent is nyet ("there is/are not"), used with the logical subject in the genitive case. In English, existential clauses usually use the dummy subject construction (also known as expletive) with there, as in "There are boys in the yard", but there is sometimes omitted when the sentence begins with another adverbial (usually designating a place), as in "In my room (there) is a large box." Other languages with constructions similar to the English dummy subject include French (see ) and German, which uses , or , literally "it is", "it are", "it gives". Uses Indicating existence or presence The principal meaning of existential clauses is to refer to the existence of something or the presence of something in a particular place or time. For example, "There is a God" asserts the existence of a God, but "There is a pen on the desk" asserts the presence or existence of a pen in a particular place. Existential clauses can be modified like other clauses in terms of tense, negation, interrogative inversion, modality, finiteness, etc. For example, one can say "There