1 1. 12. 13. 14. 15. 16. 17. 18. 19.20。 How to write it in English?

1 1, 12, 13, 14, 15, 16, 17, 18, 19,200.

Eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty.

English evolved from the language spoken by the white people of Anglo-Saxon and jute tribes who immigrated to the British Isles from Scandinavia, Germany, the Netherlands and surrounding areas, and spread to all parts of the world through active British colonization.

Due to contact with many national languages in history, vocabulary has changed from unitary to pluralistic, grammar has changed from "more inflections" to "less inflections", and pronunciation has changed regularly.

19 From the 20th century, the leading position of Britain and America in world culture, economy, military affairs, politics and science made English an international language. Nowadays, English is used as a medium of communication in many international situations.