There are examples of usage in sentences illustrating the syntactic, morphological and semantic properties of the verb. Hindi and Urdu have a number of features which are of interest in linguistic research. It is a head-final language with postpositional case marking. Some postpositions are associated with grammatical function, some with specific roles associated with the meaning of the verb. The full database can be used to test hypotheses about the general linking principles governing the syntactic projection and case properties which can be derived from lexical information.
Some issues involve syntactic properties such as transitivity.
Other issues involve semantic classes, such as psychological verbs of emotion, physical state, and mental perception. These verbs project a variety of sentence types, including nominative, dative or ergative case. Morphological issues include a characterization of causative derivation and related transitive and intransitive verbs. Another issue of particular prominence in Hindi and Urdu involves complex predicates formed from a variety of sources, including Sanskrit, Persian, Arabic and English. The syntactic projections of these verbs are often quite different from one another, particularly in the grammatical function and case of the thematic object.