A verb that is a copula is sometimes called a copulative or copular verb. For locative predicates, the copula is . However, there are several types of nominal predicative constructions, with or without a copula. Such conditional independence relations can be represented with a Bayesian network or copula functions. The pronoun used with the copula is different from the normal pronoun. They form the matrix predicate together with the copula. Khmer uses three verbs for what translates into English as the copula. Adjectives were uninflected when connected through a copula. The verb "i-" serves as a copula. The copula in late Quenya is the verb "na-". Therefore, modeling approaches using the Gaussian copula exhibit a poor representation of extreme events. The Gaussian copula is a distribution over the unit cube formula 15. For information on the morphological evolution of the Romance copula, see Romance verbs. However, numerous constructions seem to be incompatible with the suffixal copula claim. Esperanto uses the copula much as English.