In prepositional phrases, prepositions always precede their noun complements. They also function as arguments in such constructs as participial phrases and prepositional phrases. The substantive verb is used when the predicate is an adjective, adverb, or prepositional phrase. A preposition together with its complement is called a prepositional phrase. Otherwise the whole prepositional phrase is omitted, the preposition then being implicitly understood. Latin sometimes uses prepositions, depending on the type of prepositional phrase being used. Indirect objects can be noun phrases or prepositional phrases. Non-subject constituents include verbs, a progressive marker, objects, indirect objects, adverbs, prepositional phrases, complementizers. These functions are instead fulfilled by periphrastic constructions involving a verb and various prepositional phrases. The genitive case is also used in many prepositional constructions. When a particle verb is transitive, it can look just like a prepositional verb. There are also types of phrases like noun phrase and prepositional phrase. A predicate form of the superlative is actually a prepositional phrase. The accusative case developed as a prepositional case, displacing many instances of the ablative. The prepositional case is called the dative by convention.