Conditionals are one of the most important topics in language. They are used to express hypothetical thought and uncertainty that have deep implications to human reasoning and decision making. Traugott et al (1986: 3) state that the understanding of the human mechanism of constructing and comprehending conditionals provides basic insights into the cognitive processes, linguistic competence and inferential strategies of human beings. Conditional constructions also reflect the human capacity to contemplate various situations and to infer consequences on the basis of known or imaginary conditions