Spanish is a relatively inflected language, with a two-gender noun system and about fifty conjugated forms per verb, but with inflection of nouns, adjectives, and determiners limited to number and gender. (For a detailed overview of verbs, see Spanish verbs and Spanish irregular verbs.)
Spanish syntax is considered right-branching, meaning that subordinate or modifying constituents tend to be placed after their head words. The language uses prepositions (rather than postpositions or inflection of nouns for case), and usually—though not always—places adjectives after nouns, as do most other Romance languages. Its sentence structure is generally subject–verb–object, although variations are common. It is a “pro-drop”, or “null-subject” language—that is, it allows the deletion of subject pronouns when they are pragmatically unnecessary. Spanish is described as a “verb-framed” language, meaning that the direction of motion is expressed in the verb while the mode of locomotion is expressed adverbially (e.g. subir corriendo or salir volando; the respective English equivalents of these examples—’to run up’ and ‘to fly out’—show that English is, by contrast, “satellite-framed”, with mode of locomotion expressed in the verb and direction in an adverbial modifier).