The English version of "how to speak Sinhala." The original of this e-book was written in Japanese which is the papper book for the Japanese to learn Sinhala through Japanese language. In this English version, we compare Sinhala and Japanese to point out the linguistic similarity of colloquial syntax. Sinhala and Japanese part 1 Colloquial syntax /contents 1 Characteristics of sentence in Sinhala and Japanese 2 Nagated / Negative sentence 3 Interrogative sentence 4 Quasi verb in Sinhala and Japanese - in'nawa/thiyenawa; and iru/aru 5 Involitive sentence in Sinhala and Japanese postscript