The number of bound morphemes and other features typical of a flexional language are severely limited in Esperanto. Esperanto is an accusative language, explicitly marking objects by a case ending where possible. Standard word order is SVO, but the ability to mark the majority of objects allows a substantial degree of freedom in this respect and OSV is the next most common sequence. Esperanto is prepositional, and attributive adjectives, numerals and determiners normally precede their noun. In word formation, modifiers normally precede their head.
Clause structure is oriented around the verb in Esperanto.
Syntax in Esperanto exhibits considerable freedom. The positioning of adjuncts is less rigid compared with English and German, for example. There is no grammatical gender or noun class in Esperanto. There is agreement in case and number for adjectives. Some features for marking aspect are also available, but optional.