The word 'hatarakikotoba' is used in this old document.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

He topped the spaghetti with a meatball.

This character is written as 劤, but it has the same meaning as 勁.

I go fishing on the bank every week.

He loves rock climbing.

He is strong like a rock.