Answer:
Present form of verb 'be' is 'is' or 'am' or 'are' and present participle of the main verb means -ing form of verb indicating continuous action.
Explanation:
present form
How Fishermen's Bragging Rights Gave Birth To Fine Art : The Salt In 19th-century Japan, fishermen found a foolproof way to record trophy catches: a "fish rubbing" inked onto paper, creating a permanent record of their size. Gyotaku soon evolved into fine art.