A causative form, in linguistics, is an expression of an agent causing or forcing a patient to perform an action (or to be in a certain condition). All languages have ways to express causation, but they differ in the means. In some languages there are morphological devices (such as inflection) that change verbs into their causative forms, or adjectives into verbs of "becoming". Other languages employ periphrasis, with idiomatic expressions or auxiliary verbs. All languages also have lexical caus… (More on Causative)